# G3154 ματαιόω

ματαιόω (mataióō), Strong’s G3154: to render (passively, become) foolish, i.e. (morally) wicked or (specially), idolatrous KJV: become vain. Occurs 7 times.

Source: https://besorah.bible/word/G3154 — Besorah, the whole Bible in Hebrew, Greek and English. Texts and licences: https://besorah.bible/about/credits.html

*mataióō* — to render (passively, become) foolish, i.e. (morally) wicked or (specially), idolatrous

KJV: become vain

Derived from [μάταιος mátaios](https://besorah.bible/word/G3152) (empty)

Occurs 7 times.

## Where it occurs
- [Romans 1:21](https://besorah.bible/besorah/romans/1?v=21) — Because knowing God, they didn’t glorify him as God, and didn’t give thanks, but became vain in their reasoning, and…
- [Judith 6:4](https://besorah.bible/tanakh-gr/judith/6?v=4) — For with them we will burn them up. Their mountains will be drunken with their blood. Their plains will be filled with…