'Hidden' in the Bible

“You are the light of the world. A city set on a hill cannot be hidden;

“Therefore do not fear them, for there is nothing concealed that will not be revealed, or hidden that will not be known.

This was to fulfill what was spoken through the prophet:“I will open My mouth in parables;I will utter things hidden since the foundation of the world.”

“The kingdom of heaven is like a treasure hidden in the field, which a man found and hid again; and from joy over it he goes and sells all that he has and buys that field.