'Add' in the Bible

You shall not add to the word which I am commanding you, nor take away from it, that you may keep the commandments of the Lord your God which I command you.

“Whatever I command you, you shall be careful to do; you shall not add to nor take away from it.

if you carefully observe all this commandment which I command you today, to love the Lord your God, and to walk in His ways always—then you shall add three more cities for yourself, besides these three.