The Library  /  That You May Know
A study of 1 John · 18 lessons

That You May Know

An eighteen-lesson study in the assurance of 1 John 5:13 — read slowly, until you know.
Start the studyFree · eighteen lessons · begin any time
Prefer to listen first? This study has a companion podcast — Until You Know.

Certainty

You may know you have eternal life — resting on God’s testimony, not on a feeling that comes and goes.

Communion

You are brought into fellowship — with the Father, with the Son, and with his people.

Conduct

A life of love and obedience that flows from both — the family likeness of those born of God.

A gentle rhythm

Set a time, and your calendar will remember for you

Nothing is sent to us and nothing to sign up for — this simply adds a quiet recurring reminder to your own calendar, with a link back to your place in the study.

About the letter

Who wrote it, and to whom

John — the apostle who leaned close at the last supper — wrote this letter near the end of his long life, most likely from Ephesus, to churches he had fathered in the faith. Trouble had come from inside: teachers who denied that the Son of God had truly come in the flesh had walked out, and their leaving left ordinary believers shaken about where they themselves stood.

Why it was written

John says his purpose outright, and the course takes its name from it: these things are written so that you who believe in the name of the Son of God may know that you have eternal life (1 John 5:13). Not guess. Not hope on good days. Know — with a settled assurance that rests on what God has said and done, not on the weather of your feelings.

How the letter moves

This is not a linear essay but a spiral. John circles three tests again and again — believing rightly about Jesus, walking in the light of obedience, and loving one another — and each pass cuts deeper than the last. Along the way he writes some of scripture’s plainest sentences about light and darkness, love and the world, the Spirit’s witness, and the Son who is our advocate.

What the study asks of you

Eighteen lessons, each built around the letter’s own words in the Berean Standard Bible. You read the passage itself, tap its key words open, test what you’re seeing against questions and interactions, and write short reflections that are kept privately on your device — until the final lesson gathers everything you wrote into one account of the road you walked.

Questions, answered

How long does a lesson take?

Fifteen to twenty-five unhurried minutes. Each lesson is a complete sitting — a passage, its teaching, an interaction or two, and a moment to write. Your place is kept, so stopping mid-lesson costs nothing.

Can I start anywhere, or do the lessons build?

They build. John’s letter circles its themes in deepening passes, and the study walks it in order — and the final lesson gathers everything you wrote along the way into one account. Start at the Welcome and let it accumulate.

Is the study really free?

Yes — the whole course, including audio narration, is free. No account, no payment details, no catch. If you’d like one short email when a new study opens, the sign-up at the bottom of the page is the only list we keep.

What Bible translation is used?

The Berean Standard Bible (BSB) — a clear, modern, word-faithful translation. You read the full passage text inside every lesson; the study never asks you to take our word for what the text says.

Do I need to create an account?

No. Your journal and your progress are saved privately in your own browser, on your own device. Nothing you write is sent to us or stored on a server.

Does it have audio?

Every lesson is fully narrated — the teaching, the scripture, the prayers. Listen and read together, or let the narration carry a passage while you sit with it. Audio streams while you’re online.

Next to open

When the next study opens

James arrives in September, and a new study follows each month. Leave your email and we’ll send one short note each time one opens — nothing else.