(1 Kings 17:3; 1 Kings 18:1) The Lord said first to Elijah, “Go hide thyself”; then, “Go, show thyself”.
He who does not first hide himself in the secret place to be alone with God, is unfit to show himself in the public place to move among men.
(A. T. Pierson, “George Muller of Bristol”)
"Therefore the Lord himself will give you a sign: The virgin will be with child and will give birth to a son, and you will call him Immanuel."
Isaiah 7: 14