'Secrets' in the Bible

but there is a God in heaven that revealeth secrets, and he hath made known to the king Nebuchadnezzar what shall be in the latter days. Thy dream, and the visions of thy head upon thy bed, are these:

as for thee, O king, thy thoughts came into thy mind upon thy bed, what should come to pass hereafter; and he that revealeth secrets hath made known to thee what shall come to pass.

The king answered unto Daniel, and said, Of a truth your God is the God of gods, and the Lord of kings, and a revealer of secrets, seeing thou hast been able to reveal this secret.