Learn
Five Minutes, One Idea at a Time
Swipe through short, beautifully designed cards: a question, the Scripture that answers it, a key term, a moment from history, and a check that you understood.
Online Bible study · Systematic theology
Deep Theology. Small Lessons.
Learn what the Bible teaches about God, Christ, salvation, and the church, five minutes at a time.
“Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth.” 2 TIMOTHY 2:15
40Doctrine categories
397Interactive lessons
54Moments in church history
21Traditions explained
How it works
Three Layers of Learning.
Start with a question you care about. Go as deep as you want. Every layer teaches the same doctrine, so nothing is repeated and nothing is lost.
Understand
Open Any Card to Go Deeper
Every important idea has more behind it: the original wording, more Scripture, common misunderstandings, and how believers have answered them.
Study
A Reference Library When You're Ready
Each doctrine has a full article: the biblical foundation, the history, alternative views stated fairly, common objections, and why it matters.
The curriculum
The Whole Counsel of God, in Order.
40 categories of study: systematic theology from the doctrine of Scripture to the last things, plus apologetics for defending the faith. Follow the recommended path or begin wherever your questions are.
- 01ProlegomenaIntroduction to Theology
- 02BibliologyThe Doctrine of Scripture
- 03Theology ProperThe Doctrine of God
- 04ChristologyThe Doctrine of Christ
- 05PneumatologyThe Doctrine of the Holy Spirit
- 06AnthropologyThe Doctrine of Man
- 07HamartiologyThe Doctrine of Sin
- 08SoteriologyThe Doctrine of Salvation
- 09EcclesiologyThe Doctrine of the Church
- 10Angelology & DemonologyAngels, Satan, and Spiritual Beings
- 11EschatologyThe Doctrine of Last Things
- 12ApologeticsDefending the Faith
- 13PentecostalismThe Pentecostal and Charismatic Movements
- 14TypologyChrist in All the Scriptures
- 15Advanced HermeneuticsA Field Guide to Understanding God's Word
- 16DispensationalismRightly Dividing God's Program
- 17Covenant TheologyThe Reformed Framework and a Baptist Response
- 18Expository PreachingPreparing and Delivering Expository Sermons
- 19CatholicismRome's Teaching and the Gospel of Grace
- 20Baptist DistinctivesWhat We Believe and Why We Are Baptists
- 21Calvinism and ArminianismElection, Grace, and Security in Scripture
- 22CultsAnother Jesus, Another Gospel
- 23World ReligionsThe Gospel for Every Nation
- 24The Big PictureHow the Bible Fits Together
- 25The LawGenesis to Deuteronomy
- 26The History BooksJoshua to Esther
- 27Poetry and WisdomJob to Song of Solomon
- 28The Major ProphetsIsaiah to Daniel
- 29The Minor ProphetsHosea to Malachi
- 30The Gospels and ActsMatthew to Acts
- 31Paul's LettersRomans to Philemon
- 32General Letters and RevelationHebrews to Revelation
- 33The Christian LifeGrowing in Grace Day by Day
- 34Marriage and FamilyGod's Design for the Home
- 35Pastoral MinistryShepherding the Flock of God
- 36Deconstruction and Progressive ChristianityDoubt, Drift, and Apostasy
- 37The Life of ChristFrom the Silent Years to the Mount of Olives
- 38Missions and EvangelismSharing the Gospel Here and Everywhere
- 39Christian EthicsThinking Biblically About Hard Questions
- 40Hard SeasonsWhen Life Is Too Heavy
Courses
Seminary-Level Theology, Without the Tuition.
Theologica is an online Bible study in the subjects a seminary teaches: systematic theology, apologetics, hermeneutics, and church history. Every subject is a complete course of short lessons. Study at your own pace, on any device, and begin free.
- 57 lessonsSystematic TheologyEvery major doctrine, from the doctrine of Scripture to the last things.
- 13 lessonsApologeticsA reasoned defense of the faith from Scripture, logic, and evidence.
- 8 eras · 54 eventsChurch HistoryChrist's churches from the apostles to today, and the errors they withstood.
- 10 lessonsHermeneuticsHow to interpret the Bible: context, genre, prophecy, and rightly dividing the word.
- 18 lessonsTypologyChrist in the Old Testament, in the types Scripture itself establishes.
- 8 lessonsDispensationalismGod's one plan through history, Israel and the church, and the promises He will keep.
- 8 lessonsCovenant TheologyThe Reformed framework, stated fairly and weighed against the covenants of Scripture.
- 13 lessonsCatholicismRome's teaching on salvation, the sacraments, Mary, and the papacy, answered from the Bible.
- 14 lessonsPentecostalismThe Pentecostal and charismatic movements, and what Scripture says about the Spirit's gifts.
- 13 lessonsExpository PreachingDrawing the meaning out of a text and making that meaning the message.
- 67 lessonsBible SurveyAll 66 books: who wrote each one, what it teaches, and where Christ appears in it.
- 12 lessonsThe Life of ChristThe life of Jesus in order, from Bethlehem to the Mount of Olives.
- 13 lessonsThe Christian LifeAssurance, the Word, prayer, fasting, giving, and walking with God day by day.
- 13 lessonsMarriage and FamilyGod's design for marriage, parenting, purity, and the hard seasons of family life.
- 5 lessonsHard SeasonsHelp for anxiety, depression, grief, addiction, and the silence of God.
- 9 lessonsChristian EthicsWhat Scripture says about government, war, justice, race, technology, and work.
- 10 lessonsMissions and EvangelismHow to share the Gospel, and how churches send it to the world.
- 11 lessonsBaptist DistinctivesWhat makes a Baptist a Baptist, and why those convictions still matter.
- 11 lessonsCalvinism and ArminianismElection, grace, and security, with each view stated fairly and weighed from Scripture.
- 30 lessonsCults and World ReligionsWhat other faiths teach in their own words, and how to share the Gospel with their people.
- 12 lessonsDeconstruction and Progressive ChristianityDoubt, drift, and apostasy, answered from Scripture with help for those who are walking away.
- 13 lessonsPastoral MinistryThe call, the qualifications, and the care of a local church.
Your own Bible study
Five minutes a day through what the Bible teaches, with the Scripture open in every lesson.
Small groups and Sunday school
Each lesson opens with a question and the passages that answer it: a ready outline for a class.
Pastors and teachers
Full Study articles with the biblical foundation, the history, objections, and further reading.
Anyone weighing seminary
Work through the subjects a seminary teaches, at your own pace, before or alongside formal study.
Scripture first
“In the beginning was the Word, and the Word was with God, and the Word was God.”JOHN 1:1
Every doctrine is grounded in the text. Each lesson opens the passage itself and lets Scripture speak first.
Scripture memory Plus
Hide the Word in Your Heart.
Tap + on any passage in a lesson, a Study article, or the Scripture panel to start memorizing it. Practice it four ways: read it, fill in the blanks, recall it from first letters, then type it from memory. Spaced review brings each verse back just before you would forget it.
Church history
Christ's Churches Never Ceased.
Follow the councils, the controversies, and the rise of Rome, alongside the believer-baptizing churches that stood apart from it in every age.
Christ's churches
AD 251The Novatianist Churches Separate
c. AD 1117–1131Peter of Bruys Preaches Believer's Baptism
c. AD 1173The Waldensian Churches
January 21, 1525Believers Baptized in Zurich
Rome and the Reformers
AD 325Council of Nicaea
AD 380Catholic Christianity Becomes the State Religion
AD 445Rome's Bishop Claims Rule Over the West
October 31, 1517Luther's Ninety-Five Theses
“And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it.” MATTHEW 16:18
Others see it differently
Understand Other Traditions Fairly.
What do Catholics, Presbyterians, Pentecostals, Jehovah's Witnesses, or Latter-day Saints believe, and why? Each comparison shows what they believe, why they believe it, what we believe, why, and why it matters.
What we believe
Baptist. Biblical. Not Calvinist, Not Arminian.
Theologica teaches its convictions plainly and represents other views accurately.
- The Bible is inspired, inerrant, infallible, and sufficient: the final authority for faith and practice.
- One God eternally exists in three persons: Father, Son, and Holy Spirit.
- Jesus Christ is eternally God and truly man. He died in our place and rose bodily from the dead.
- Salvation is by grace alone, through faith alone, in Christ alone, and the one truly saved is kept forever.
- God is sovereign, and every person is genuinely responsible to respond to Him.
- Baptism is for believers, by immersion. Each local church stands independent under Christ alone.
- Christ's churches have never ceased from the earth, distinct from Rome in every age.
- Christ will come for His church before the tribulation and reign on earth for a thousand years.
Free and Plus
Start Free. Go Deeper With Plus.
Every account is free. Theologica Plus opens the whole library and Scripture memory.
Free
$0
Everything you need to begin.
- 19 complete lessonsWhat Is Theology? · Why Does the Trinity Matter? · Was Jesus Created? · How Is a Person Saved? · Words to Know: Grace · Words to Know: Repentance · God Helps Those Who Help Themselves? · How Were People Saved in the Old Testament? · What Does It Mean to Repent and Believe? · How Can God Declare Sinners Righteous? · Words to Know: Justification · Can a Christian Lose His Salvation? · What Do I Do with Anxiety? · What If I Am Depressed? · How Do I Grieve with Hope? · What If I Do Not Want to Live? · Can I Be Free from Addiction? · Why Is God Silent? · Why Defend the Faith?
- An overview of every doctrine in the curriculum
- The church history timeline
- Guides for sharing the Gospel with people from other traditions
- Your progress, saved items, and study streak on every device
Theologica Plus
$39.99/ year
Begins with a 7-day free trial.
- Everything in Free
- All 397 lessons, with every knowledge check
- 359 full Study articles
- Scripture memory with spaced review
- Church history articles and biographies
- Heresy and tradition profiles, and doctrinal comparisons
Questions
Before You Begin.
Is Theologica an online seminary?
No. Theologica is not a school: it is not accredited and does not award degrees or course credit. It teaches the subjects a seminary's theology courses cover, such as systematic theology, apologetics, hermeneutics, and church history, in short lessons any believer can take without enrolling.
Is Theologica free?
Yes. Every account is free and includes 19 complete lessons, an overview of every doctrine, the church history timeline, and guides for sharing the Gospel. Theologica Plus, $39.99 a year with a 7-day free trial, opens all 397 lessons, every Study article, and Scripture memory.
Which Bible translation does Theologica use?
The King James Version. Scripture in the lessons and Study articles is quoted from the KJV.
What does Theologica believe?
Theologica is non-denominational Baptist and biblical: the Bible is inspired, inerrant, and sufficient; salvation is by grace alone, through faith alone, in Christ alone; and the one truly saved is kept forever. It is neither Calvinist nor Arminian, and it explains other traditions fairly, from their own sources.
Is Theologica part of a denomination?
No. Theologica is non-denominational Baptist. It belongs to no denomination or convention and answers to no denominational head, and it holds that each local church stands independent under Christ alone. It is not part of the Independent Fundamental Baptist movement.
How long does a lesson take?
About five minutes. A lesson is a short set of cards: a question, the Scripture that answers it, a key term, a moment from church history, and a check that you understood. Every doctrine also has a full Study article for deeper reading.
Can I use Theologica for a group Bible study or Sunday school?
Yes. Each lesson opens with a question and the passages that answer it, so it works as an outline for a class or small group. Share a lesson's link, and anyone can read its free preview without an account.
Do I need to download an app?
No. Theologica runs in any web browser on a phone, tablet, or computer. Apps for iPhone and Android are on the way.
Begin With One Question.
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