וַתֵּ֤שֶׁב בְּאֵיתָן֙ קַשְׁתּ֔וֹ וַיָּפֹ֖זּוּ זְרֹעֵ֣י יָדָ֑יו מִידֵי֙ אֲבִ֣יר יַעֲקֹ֔ב מִשָּׁ֥ם רֹעֶ֖ה אֶ֥בֶן יִשְׂרָאֵֽל׃
Mas su arco quedó en fortaleza, Y los brazos de sus manos se corroboraron Por las manos del Fuerte de Jacob, (De allí el pastor, y la piedra de Israel,)
Jerusalem Talmud Horayot
78An explanation of the difficult verse Gen. 49:24 as describing Joseph’s reaction to the advances of Potiphar’s wife, as appendix on the difficulties of eliminating an unwanted erection. Gen.98(24). It is written: His bow was sitting immobile. Rebbi Samuel bar Naḥman: his bow was spanned and relaxed. Rebbi Abun said, his semen spread out and came out from under his fingernails, the arms of his hands were excited. Rav Ḥuna in the name of Rav Mattanah, he lifted his eyes, saw the picture79Greek εἰκόνιον. It would not be impossible to vocalize אֵיקוֹנִיֹן. In B: “The picture of our father Jacob; immediately he cooled down.” of his father, and cooled down immediately, from the hands of the noble Jacob. Rebbi Abin said, he also saw the picture of Rachel, from there the shepherd, the rock of Israel.