What shows that the angels sent to Abraham and Lot were real beings?

Answer

"And he [Abraham] took butter, and milk, and the calf which he had dressed, and set it before them; and he
stood by them under the tree, and they did eat." "And he [Lot] made them a feast, and did bake unleavened
bread, and they did eat." Gen. 18:8; 19:3.

What appeared unto Daniel in 538 BC., the same year in which Babylon fell?
How did the Apostle Peter say the message of the Lord's coming would be treated by some?
Do they take any part in earthly things?
What shows that the angels sent to Abraham and Lot were real beings?
When Elijah was about to take a forty days journey, how was he strengthened for it?
Is there danger of believers losing their hold on Christ?
In how many things may we ask help from God?

Questions & Answers are from the book Bible Readings for the Home Circle