1 John 2:2-6

2and he is the propitiation for our sins; but not for ours alone, but also for the whole world.

3And hereby we know that we know him, if we keep his commandments.

4He that says, I know him, and does not keep his commandments, is a liar, and the truth is not in him;

5but whoever keeps his word, in him verily the love of 1God is perfected. Hereby we know that we are in him.

6He that says he abides in him ought, even as he walked, himself also [so] to walk.