'Keep' in the Bible

And hereby we know that we know him, if we keep his commandments.

He that says, I know him, and does not keep his commandments, is a liar, and the truth is not in him;

and whatsoever we ask we receive from him, because we keep his commandments, and practise the things which are pleasing in his sight.

Hereby know we that we love the children of God, when we love God and keep his commandments.

For this is the love of God, that we keep his commandments; and his commandments are not grievous.

Children, keep yourselves from idols.