After having God show His power through him, Elijah was afraid for his life and fled. Here under the broom tree.
“It is enough; now, O LORD, take away my life, for I am no better than my fathers.” And he lay down and slept under a broom tree. And behold, an angel touched him and said to him, “Arise and eat.” And he looked, and behold, there was at his head a cake baked on hot stones and a jar of water. And he ate and drank and lay down again. And the angel of the LORD came again a second time and touched him and said, “Arise and eat, for the journey is too great for you.” And he arose and ate and drank, and went in the strength of that food forty days and forty nights to Horeb, the mount of God. 1 Kings 19:1-8.
Elijah battle Ahab and Jezebel and the false god, Baal. And like we do, he got tired and afraid. He wanted to just give up and die, but the Lord had the angel to feed him and send him on his way. And this was not only an angel but the Angel of the Lord, possibly Jesus, Himself, in an Old Testament appearance. So, in that case, this angel is not an accurate depiction.
Elijah was a powerful prophet of God, and if he needed help so do we. Jesus is there as our manna from heaven and our bread of life. He has angel to send or He will come Himself to help us if we need Him.