1 Kings 19:8 in the King James Version
And he arose, and did eat and drink, and went in the strength of that meat forty days and forty nights unto Horeb the mount of God.
Context
7 The LORD’s angel came again the second time, and touched him, and said, “Arise and eat, because the journey is too great for you.”
8 He arose, and ate and drank, and went in the strength of that food forty days and forty nights to Horeb, God’s Mountain.
9 He came to a cave there, and camped there; and behold, the LORD’s word came to him, and he said to him, “What are you doing here, Elijah?”