1 John 2:2-3, 28

He is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world. Here’s how we can be sure that we’ve truly come to know God: if we keep his commands.

And now, dear children, remain in him, so that when he is revealed we may have joyful confidence and not be ashamed when we stand before him at his appearing.