Jacob's heart fainted - Probably the good news so overpowered him as to cast him into a swoon. He believed them not - he thought it was too good news to be true; and though it occasioned his swooning, yet on his recovery he could not fully credit it. See a similar case, Luke 24:41 (note).

And told him,.... What had happened to them in Egypt:

saying, Joseph is yet alive; who was thought by him and them to have been dead long ago:

and he is governor over all the land of Egypt; deputy governor, and had such power and authority that nothing was done without his order; the executive power or administration of government was put into his hands, and all the officers of the kingdom were under him, he was next to Pharaoh:

and Jacob's heart fainted, for he believed them not; it was too great and too good news to be true; though it was desirable, it was unexpected; it amazed him, he knew not what to think, or say or believe about it; there was such a conflict of the passions in him, that he could not compose himself, or reason with himself about it; and what might serve the more to hinder his belief of it was, that this report of theirs was contrary to what they themselves had before related of his death; and very likely upon the mention of the thing he fell into a swoon, and was not himself for a while; and when he came a little to himself, they went on with their account, as follows.

And told him, saying, Joseph is yet alive, and he is governor over all the land of Egypt. And Jacob's heart {h} fainted, for he believed them not.

(h) As one between hope and fear.

45:26 We have here the good news brought to Jacob. When, without any preamble, his sons came in crying Joseph is yet alive. The very mention of Joseph's name revived his sorrow, so that his heart fainted. It was a good while before he came to himself. He was in such care and fear about the rest of them, that at this time it would have been joy enough to him to hear that Simeon is released, and Benjamin is come safe home; for he had been ready to despair concerning both these; but to bear that Joseph is alive, is too good news to be true; he faints, for he believes it not.

Jacob's: Heb. his

45:25-28 To hear that Joseph is alive, is too good news to be true; Jacob faints, for he believes it not. We faint, because we do not believe. At length, Jacob is convinced of the truth. Jacob was old, and did not expect to live long. He says, Let my eyes be refreshed with this sight before they are closed, and then I need no more to make me happy in this world. Behold Jesus manifesting himself as a Brother and a Friend to those who once were his despisers, his enemies. He assures them of his love and the riches of his grace. He commands them to lay aside envy, anger, malice, and strife, and to live in peace with each other. He teaches them to give up the world for him and his fulness. He supplies all that is needful to bring them home to himself, that where he is they may be also. And though, when he at last sends for his people, they may for a time feel some doubts and fears, yet the thought of seeing his glory and of being with him, will enable them to say, It is enough, I am willing to die; and I go to see, and to be with the Beloved of my soul.