Genesis 16:5 And Sarai said unto Abram, My wrong be upon thee: I have given my maid into thy bosom; and when she saw that she had conceived, I was despised in her eyes: the Lord judge between me and thee. 6 But Abram said unto Sarai, Behold, thy maid is in thine hand; do to her as it pleaseth thee. And when Sarai dealt hardly with her, she fled from her face.
[Patriarchs & Prophets pp 145>146] She made her way to the desert, and as she rested beside a fountain, lonely and friendless, an angel of the Lord, in human form, appeared to her. Addressing her as “Hagar, Sarai's maid,” to remind her of her position and her duty, he bade her, “Return to thy mistress, and submit thyself under her hands.” Yet with the reproof there were mingled words of comfort. “The Lord hath heard thy affliction.” “I will multiply thy seed exceedingly, that it shall not be numbered for multitude.” And as a perpetual reminder of His mercy, she was bidden to call her child Ishmael, “God shall hear.”
When Abraham was nearly one hundred years old, the promise of a son was repeated to him, with the assurance that the future heir should be the child of Sarah. But Abraham did not yet understand the promise. His mind at once turned to Ishmael, clinging to the belief that through him God's gracious purposes were to be accomplished. In his affection for his son he exclaimed, “O that Ishmael might live before Thee!” Again the promise was given, in words that could not be mistaken: “Sarah thy wife shall bear thee a son indeed; and thou shalt call his name Isaac: and I will establish My covenant with him.” Yet God was not unmindful of the father's prayer.
“As for Ishmael,” He said, “I have heard thee: Behold, I have blessed him, ... and I will make him a great nation.” The birth of Isaac, bringing, after a lifelong waiting, the fulfillment of their dearest hopes, filled the tents of Abraham and Sarah with gladness. But to Hagar this event was the overthrow of her fondly cherished ambitions. Ishmael, now a youth, had been regarded by all in the encampment as the heir of Abraham's wealth and the inheritor of the blessings promised to his descendants. Now he was suddenly set aside; and in their disappointment, mother and son hated the child of Sarah. The general rejoicing increased their jealousy, until Ishmael dared openly to mock the heir of God's promise.
Genesis 21:9 And Sarah saw the son of Hagar the Egyptian, which she had born unto Abraham, mocking. 10 Wherefore she said unto Abraham, Cast out this bondwoman and her son: for the son of this bondwoman shall not be heir with my son, even with Isaac. 11 And the thing was very grievous in Abraham's sight because of his son.
May The Lord add His blessing to the study of His word. God bless!