Judges 13:4 (KJV)

And there was a certain man of Zorah, of the family of the Danites, whose name was Manoah; and his wife was barren, and bare not.

And the angel of the Lord appeared unto the woman, and said unto her, Behold now, thou art barren, and bearest not: but thou shalt conceive, and bear a son.

Now therefore beware, I pray thee, and drink not wine nor strong drink, and eat not any unclean thing:

For, lo, thou shalt conceive, and bear a son; and no razor shall come on his head: for the child shall be a Nazarite unto God from the womb: and he shall begin to deliver Israel out of the hand of the Philistines.

Then the woman came and told her husband, saying, A man of God came unto me, and his countenance was like the countenance of an angel of God, very terrible: but I asked him not whence he was, neither told he me his name: