On coming close to their habitation, they caught sight of Serah, the daughter of Asher, a very beautiful maiden, and very wise, who was skilled in playing upon the harp. They summoned her unto them and gave her a harp, and bade her play before Jacob and sing that which they should tell her. She sat down before Jacob, and, with an agreeable melody, she sang the following words, accompanying herself upon the harp: "Joseph, my uncle, liveth, he ruleth over the whole of Egypt, he is not dead!" She repeated these words several times, and Jacob grew more and more pleasurably excited. His joy awakened the holy spirit in him, and he knew that she spoke the truth.[293] The spirit of prophecy never visits a seer when he is in a state of lassitude or in a state of grief; it comes only together with joy. All the years of Joseph's separation from him Jacob had had no prophetic visions, because he was always sad, and only when Serah's words reawakened the feeling of happiness in his heart, the prophetic spirit again took possession of him.[294] Jacob rewarded her therefor with the words, "My daughter, may death never have power over thee, for thou didst revive my spirit." And so it was. Serah did not die, she entered Paradise alive. At his bidding, she repeated the words she had sung again and again, and they gave Jacob great joy and delight, so that the holy spirit waxed stronger and stronger within him. While he was sitting thus in converse with Serah, his sons appeared arrayed in all their magnificence, and with all the presents that Joseph had given them, and they spake to Jacob, saying: "Glad tidings! Joseph our brother liveth! He is ruler over the whole land of Egypt, and he sends thee a message of joy." At first Jacob would not believe them, but when they opened their packs, and showed him the presents Joseph had sent to all, he could not doubt the truth of their words any longer.[295] Joseph had had a premonition that his father would refuse to give his brethren credence, because they had tried to deceive him before, and "it is the punishment of the liar that his words are not believed even when he speaks the truth." He had therefore said to them, "If my father will not believe your words, tell him that when I took leave of him, to see whether it was well with you, he had been teaching me the law of the heifer whose neck is broken in the valley." When they repeated this, every last vestige of Jacob's doubt disappeared, and he said: "Great is the steadfastness of my son Joseph. In spite of all his sufferings he has remained constant in his piety.[296] Yea, great are the benefits that the Lord hath conferred upon me. He saved me from the hands of Esau, and from the hands of Laban, and from the Canaanites who pursued after me. I have tasted many joys, and I hope to see more, but never did I hope to set eyes upon Joseph again, and now I shall go down to him and behold him before my death."[297]