'Secrets' in the Bible

Let a man so reckon us as officers of Christ, and stewards of the secrets of God,

and if I have prophecy, and know all the secrets, and all the knowledge, and if I have all the faith, so as to remove mountains, and have not love, I am nothing;

for he who is speaking in an unknown tongue -- to men he doth not speak, but to God, for no one doth hearken, and in spirit he doth speak secrets;

and so the secrets of his heart become manifest, and so having fallen upon his face, he will bow before God, declaring that God really is among you.