Jubilees 17
5And the thing was grievous in Abraham's sight, because of his maidservant and because of his son, that he should drive them from him.
6And God said to Abraham 'Let it not be grievous in thy sight, because of the child and because of the bondwoman; in all that Sarah hath said unto thee, harken to her words and do (them); for in Isaac shall thy name and seed be called.
7But as for the son of this bondwoman I will make him a great nation, because he is of thy seed.'
9And she departed and wandered in the wilderness of Beersheba, and the water in the bottle was spent, and the child thirsted, and was not able to go on, and fell down.
14And she bare him a son, and he called his name Nebaioth; for she said, 'The Lord was nigh to me when I called upon him.'
15And it came to pass in the seventh week, in the first year thereof, in the first month in this jubilee, on the twelfth of this month, there were voices in heaven regarding Abraham, that he was faithful in all that He told him, and that he loved the Lord, and that in every affliction he was faithful.
16And the prince Mastema came and said before God, 'Behold, Abraham loves Isaac his son, and he delights in him above all things else; bid him offer him as a burnt-offering on the altar, and Thou wilt see if he will do this command, and Thou wilt know if he is faithful in everything wherein Thou dost try him.
See also: Job 1:11
17And the Lord knew that Abraham was faithful in all his afflictions; for He had tried him through his country and with famine, and had tried him with the wealth of kings, and had tried him again through his wife, when she was torn (from him), and with circumcision; and had tried him through Ishmael and Hagar, his maid-servant, when he sent them away.
18And in everything wherein He had tried him, he was found faithful, and his soul was not impatient, and he was not slow to act; for he was faithful and a lover of the Lord.