Talmud do Hioba 27:2

HALAKHAH: “On the same day, Joshua ben Hyrcanos explained,” etc. It was stated in the name of Rebbi Jehudah: “God lives¹⁴⁶Job 27:2. This is an oath formula. Since nobody swears by the life of the king unless he loves the king, the verse supports R. Joshua ben Hyrkanos. Who removed my lawsuit, and the Ruler made me bitter;” for nobody swears by the King’s life unless he loves Him. They said in the name of Rebbi Nathan: “Also He is my help, for insincerity will not come before Him.¹⁴⁷Job 13:16; cf. Note 143. The verse following the one in dispute shows that לו is the only consistent reading.”