'Mysteries' in the Bible

And he answered [and] said to them, "To you it has been granted to know the mysteries of the kingdom of heaven, but to those [people] it has not been granted.

And he said, "To you it has been given to know the mysteries of the kingdom of God, but to the rest [they are] in parables, so that 'Seeing they may not see, and hearing they may not understand.'

Thus let a person consider us as servants of Christ and stewards of God's mysteries.

And if I have [the gift of] prophecy and I know all mysteries and all knowledge, and if I have all faith so that [I can] remove mountains, but do not have love, I am nothing.

For the one who speaks in a tongue does not speak to people but to God, because no one understands, but by the Spirit he speaks mysteries.