Thematic Bible: Who is true

Jesus therefore answered them, "My teaching is not mine, but his who sent me. If anyone desires to do his will, he will know about the teaching, whether it is from God, or if I am speaking from myself. He who speaks from himself seeks his own glory, but he who seeks the glory of him who sent him is true, and no unrighteousness is in him.

But whoever has the world's goods, and sees his brother in need, and closes his heart of compassion against him, how does the love of God remain in him? Little children, let us not love in word only, neither with the tongue only, but in deed and truth. And by this we will know that we are of the truth, and persuade our heart before him, read more.
because if our heart condemns us, God is greater than our heart, and knows all things. Beloved, if our hearts do not condemn us, we have confidence before God;

Beloved, do not believe every spirit, but test the spirits, whether they are of God, because many false prophets have gone out into the world. By this you know the Spirit of God: every spirit who confesses that Jesus Christ has come in the flesh is of God,