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Evangelism · 1 min read · 2026-08-05

What Is an Oikos — and Why It Changes How You Evangelise

The New Testament word for your relational world. Understanding it takes the pressure off evangelism and makes it something you can actually do.

If evangelism feels like something for other people, you may be missing one word.

Oikos: the word

Oikos is Greek for "household" — but in the first century it covered extended family, workers, and close friends. Your relational world.

  • "Believe in the Lord Jesus, and you will be saved, you and your household." (Acts 16:31)

The gospel spread through relational networks, not mainly through strangers on street corners.

Why this matters

Most Christians feel guilty about evangelism because they picture a cold conversation with a stranger. The New Testament pattern is warmer: the people already in your life.

It's invisible until you write it down

Write 5–10 names of people who don't know Jesus. Not categories — names. "Lost people" is an abstraction you can ignore. "Mark, going through a divorce" is a person you'll pray for tonight.

That's why we built Oikos Map — free, to map your world and pray by name — and Kingdom Base to actually track follow-up.

Three steps for a normal week

  1. List them. Five names.
  2. Pray for them by name. Daily.
  3. Serve one this week. "Let us not love with words or speech but with actions and in truth." (1 John 3:18)

You aren't responsible for anyone's conversion — "I planted, Apollos watered, but God gave the growth." (1 Corinthians 3:6)

Seek first. Stay ready.

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