1 John 3:1-3

See how great a love the Father has given us, that we would be called children of God; and in fact we are. For this reason the world does not know us: because it did not know Him.

Beloved, now we are children of God, and it has not appeared as yet what we will be. We know that when He appears, we will be like Him, because we will see Him just as He is.

And everyone who has this hope set on Him purifies himself, just as He is pure.