Genesis 16:9

“And the angel of the Lord said unto her, etc.] The same angel; though Jarchi thinks that one angel after another was sent, and that at every speech there was a fresh angel; and because this phrase is repeated again and again, some of the Rabbins have fancied there were four angels f1047 , and others five, but without any reason: return to thy mistress, and submit thyself under her hands; go back to her, humble thyself before her, acknowledge thy fault, enter into her service again, and be subject to her; do her work and business, bear her corrections and chastisements; and “suffer thyself to be afflicted” f1048, by her, as the word may be rendered; take all patiently from her, which will be…”

“- The Birth of Ishmael 1. הנר hāgār, Hagar, “flight.” Hejrah, the flight of Muhammed. 7. מלאך mal'ak “messenger, angel.” A deputy commissioned to discharge a certain duty for the principal whom he represents. As the most usual task is that of bearing messages, commands, or tidings, he is commonly called a “messenger” ἄγγελος angelos). The word is therefore a term of office, and does not further distinguish the office-bearer than as an intelligent being. Hence, a מלאך mal'ak may be a man deputed by a man Genesis 32:3; Job 1:14, or by God Haggai 1:13; Malachi 3:1, or a superhuman being delegated in this case only by God. The English term “angel” is now especially appropriated to the latter…”