Genesis 16:3

“And Sarai, Abram’s wife, took Hagar her maid, the Egyptian, etc.] Took her by the hand, it is probable, and led her into the apartment where Abram was, and presented her to him; their characters are very exactly described, and the contrast beautifully given, that the affair might be the more remarkable and observable: after Abram had dwelt ten years in the land of Canaan; so that he was now eighty five years of age, for he was sventy five when he departed from Haran and came into Canaan, (<011204>Genesis 12:4); and Sarai, being ten years younger than he, must be sventy five; the Jews from hence have formed a rule or canon; that if a man marries a woman, and she has no children in ten years,…”

“Sarai . . . gave her to . . . Abram to be his wife--"Wife" is here used to describe an inferior, though not degrading, relation, in countries where polygamy prevails. In the case of these female slaves, who are the personal property of his lady, being purchased before her marriage or given as a special present to her, no one can become the husband's secondary wife without her mistress consent or permission. This usage seems to have prevailed in patriarchal times; and Hagar, Sarai's slave, of whom she had the entire right of disposing, was given by her mistress' spontaneous offer, to be the secondary wife of Abram, in the hope of obtaining the long-looked-for heir. It was a wrong…”

“- 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…”