Deuteronomy 7:21

Thou shalt not be affrighted at them: for the LORD thy God is among you, a mighty God and terrible.
— Deuteronomy 7:21, King James Version

In other translations

World English Bible (WEB)

You shall not be scared of them; for Yahweh your God is in the midst of you, a great and awesome God.

American Standard Version (ASV)

Thou shalt not be affrighted at them; for Jehovah thy God is in the midst of thee, a great God and a terrible.

Young's Literal Translation (YLT)

thou art not terrified by their presence, for Jehovah thy God <FI>is<Fi> in thy midst, a God great and fearful.