1 John

Practice righteousness

Little children, make sure no one deceives you; the one who practices righteousness is righteous, just as He is righteous;

the one who practices sin is of the devil; for the devil has sinned from the beginning. The Son of God appeared for this purpose, to destroy the works of the devil.

1 John 3:7-8 (NASB)

Do you still walk in darkness?

The one who says he is in the Light and yet hates his brother is in the darkness until now.

The one who loves his brother abides in the Light and there is no cause for stumbling in him.

But the one who hates his brother is in the darkness and walks in the darkness, and does not know where he is going because the darkness has blinded his eyes.

1 John 2:9-11 (NASB)

God is Light

This is the message we have heard from Him and announce to you, that God is Light, and in Him there is no darkness at all.

If we say that we have fellowship with Him and yet walk in the darkness, we lie and do not practice the truth;

but if we walk in the Light as He Himself is in the Light, we have fellowship with one another, and the blood of Jesus His Son cleanses us from all sin.

1 John 1:5-7 (NASB)

Love not the world

Love not the world, neither the things that are in the world. If any man love the world, the love of the Father is not in him.
For all that is in the world, the lust of the flesh, and the lust of the eyes, and the pride of life, is not of the Father, but is of the world.
— 1 John 2:15-16 (KJV)