'Mysteries' in the Bible

He answered them, “Because the secrets of the kingdom of heaven have been given for you to know, but it has not been given to them.

A person should consider us in this way: as servants of Christ and managers of God’s mysteries.

If I have the gift of prophecyand understand all mysteriesand all knowledge,and if I have all faithso that I can move mountainsbut do not have love, I am nothing.

For the person who speaks in another language is not speaking to men but to God, since no one understands him; however, he speaks mysteries in the Spirit.