Matthew 13:35
that it might be fulfilled which was spoken by the prophet, saying, I will open my mouth in parables, I will bring forth things hid from the foundation of the world.
Romans 16:25-26
Now to him that is able to stablish you according to my gospel, and the preaching of Jesus Christ, agreeable to the revelation of the mystery; which was concealed from all former ages,
1 Corinthians 2:9-11
But, as it is written, "The things which eye hath not seen, and ear hath not heard, and that have not entered into the heart of man, these hath God prepared for those who love him."
Ephesians 3:5
which in other generations was not made known to the children of men, as it hath been now revealed to his holy apostles and prophets by the Spirit;