Judges 13:13-16

So the angel of the LORD said to Manoah, “Let the woman pay attention to all that I said. She should not eat anything that comes from the vine nor drink wine or strong drink, nor eat any unclean thing; let her observe all that I commanded.” Then Manoah said to the angel of the LORD, “Please let us detain you so that we may prepare a young goat for you.” The angel of the LORD said to Manoah, “Though you detain me, I will not eat your food, but if you prepare a burnt offering, then offer it to the LORD.” For Manoah did not know that he was the angel of the LORD.