Judges 13:13-16

And the angel of Jehovah said unto Manoah, Of all that I said unto the woman let her beware. She may not eat of anything that cometh of the vine, neither let her drink wine or strong drink, nor eat any unclean thing; all that I commanded her let her observe. And Manoah said unto the angel of Jehovah, I pray thee, let us detain thee, that we may make ready a kid for thee. And the angel of Jehovah said unto Manoah, Though thou detain me, I will not eat of thy bread; and if thou wilt make ready a burnt-offering, thou must offer it unto Jehovah. For Manoah knew not that he was the angel of Jehovah.