1 John 2:16

2:16 because all that is in the world (the desire of the flesh and the desire of the eyes and the arrogance produced by material possessions) is not from the Father, but is from the world.

1 John 3:10

3:10 By this the children of God and the children of the devil are revealed: Everyone who does not practice righteousness – the one who does not love his fellow Christian – is not of God.

1 John 5:9

5:9 If we accept the testimony of men, the testimony of God is greater, because this is the testimony of God that he has testified concerning his Son.