The child Isaac was shown to every visitor, and all were astonished at his resemblance to Abraham. Both the babe and his father were so much alike that it was impossible to distinguish one from the other, and all doubt as to whose it was vanished before such evidence of likeness to the father, and before the fulness of Sarah’s breasts. But as confusion was likely to arise through the striking similarity between father and son, Abraham besought God to give him wrinkles and white hair, that he might not be mistaken for the babe Isaac, or the babe Isaac be mistaken for him.[319]
Ishmael grew up, and became skilful with his bow; he was rough and undisciplined, and he occasionally lapsed into idolatry, but without his father knowing it. But Sarah was aware of his sin, and was grieved thereat.
Ishmael often boasted, “I am the eldest son, and I shall have a double portion of my father’s inheritance.” These words were reported to Sarah, and she hated Ishmael for them in her heart.
One day when Isaac was five years old, but others say fifteen, Ishmael said to him, “Come forth into the field and let us shoot.” Isaac was well pleased. And when they were in the field, Ishmael turned his bow against his brother, but he did it in jest. Sarah saw him from the tent door, and she ran out, and caught away her son Isaac, and she went to Abraham and told him all the evil she knew of Ishmael; how he had gone after idols and had learnt the ways of the Canaanites that were in the land, how he had boasted of his majority, and how he had sought Isaac’s life. And she said, “Give the maid-servant a writing of divorcement, and send her away. _Cast out this bond-woman and her son; for the son of this bond-woman shall not be heir with my son, even with Isaac._ Then she will no more vex Isaac. Do thou leave to Isaac all thy possessions. Never shall Ishmael inherit any thing from thee, for he is not my son.”
Abraham was grieved at heart, for he loved Ishmael his son, but nothing that he said could alter Sarah’s determination. She insisted on the expulsion of Hagar and her son, and she stirred up the wrath of Abraham against Ishmael, because he had fallen into idolatry.
Sarah, say the Mussulmans, was so fierce in her jealousy, that she would not be satisfied till she had washed her hands in the blood of Hagar. Then Abraham quickly pierced Hagar’s ears, and drew a ring through them, so that Sarah could fulfil her oath, without endangering the life of Hagar.[320]