You May Be In The Presence Of Angels Unaware - Judges 12-13.

Judges 13:17-20 Then Manoah said to the Angel of the Lord, “What is Your name, that when Your words come to pass we may honor You?” And the Angel of the Lord said to him, “Why do you ask My name, seeing it is wonderful?” So Manoah took the young goat with the grain offering, and offered it upon the rock to the Lord. And He did a wondrous thing while Manoah and his wife looked on— it happened as the flame went up toward heaven from the altar—the Angel of the Lord ascended in the flame of the altar! When Manoah and his wife saw this, they fell on their faces to the ground.