Literatura del Segundo Templo sobre Génesis 30:18

[80] Judah and Issachar seem to be these. For the man who exercises himself in the practical wisdom of God, makes thankful acknowledgement to Him who bestowed good without stint; while the representative of the other aspect is furthermore engaged in noble and worthy works. Now of the man who makes confession of thankfulness Judah is the symbol, with whose birth Leah leaves off bearing (Gen. 29:35); but of him who is engaged in noble deeds Issachar is the figure, “for he submitted his shoulder to labour and became a tiller of the soil” (Gen. 49:15). In his case, as Moses says, when he has been sown and planted in the soul “there is a reward” (Gen. 30:18), that is to say his labour is not in vain, but crowned by God and awarded a recompense.

[134] A very clear illustration of what has been said is found in the sons of Leah, who is Virtue; not indeed in all of them, but in the fourth and fifth. For, after recording the birth of the fourth, Moses says that “she ceased from bearing” (Gen. 30:35), and his name is “Judah,” which signifies “confession of praise to the Lord.” The fifth she calls “Issachar,” a name which interpreted means “reward.” And the soul, upon giving birth to this character, at once gave utterance to her experience; for it says, “She called his name Issachar, which is ‘reward’ ” (Gen. 30:18).