Why Is Jeremiah Called the "Weeping Prophet"?
Why Did God Care Enough about Nineveh to Send Jonah?
What Are We to Make of the Abrupt Finish to the Book of Jonah?
ANGEL OF GOD
Orr, James, M.A., D.D. General Editor. "Entry for 'ANGEL OF GOD'". "International Standard Bible Encyclopedia". 1915.