My Father, whom you (Jews) claim as your God, is the one who glorifies me. Though you do not know him, I know him. If I said I did not, I would be a liar like you, but I do know him and keep his word. John 8:55

John 4:22,23 You (non-Jews) worship you know not what: we know what we worship: for salvation is of the Jews. But the hour cometh, and now is, when the true worshippers shall worship the Father in spirit and in truth: for the Father seeketh such to worship him.

The most important one, answered Jesus, is this: 'Hear, O Israel, the Lord our God, the Lord is one. Mark 12:29, Deuteronomy 6:4