Deuteronomy 7:2

and when the Lord your God has delivered them over to you to defeat them, then you must devote them to complete destruction. Make no treaty with them and show them no mercy.

Note Forms of the Hebrew cherem refer to the giving over of things or persons to the Lord, either by destroying them or by giving them as an offering; also twice in verse 26.

Note Forms of the Hebrew berit are translated in most passages as covenant.

And when the Lord thy God shall deliver them before thee; thou shalt smite them, and utterly destroy them; thou shalt make no covenant with them, nor shew mercy unto them:

and when the Lord your God delivers them up before you, and you strike them, then you shall utterly destroy them. You shall make no covenant with them, nor show mercy to them.

and when Jehovah thy God shall deliver them up before thee, and thou shalt smite them; then thou shalt utterly destroy them: thou shalt make no covenant with them, nor show mercy unto them;