Judges 13:19-21

So Manoah sacrificed a young goat on a rock and offered some grain as a gift to the LORD. Then an amazing thing happened as Manoah and his wife watched. The flames went up to the sky from the altar. As the fire burned, the angel of the LORD went up to heaven in the flame. When Manoah and his wife saw that, they bowed facedown on the ground. The angel of the LORD did not appear to them again. Then Manoah understood that the man was really the angel of the LORD.