הִנֵּה־נָ֣א כֹח֣וֹ בְמָתְנָ֑יו וְ֝אֹנ֗וֹ בִּשְׁרִירֵ֥י בִטְנֽוֹ׃
Lo now, his strength is in his loins, And his force is in the stays of his body.
Rashi on Job
his strength is in his loins His testicles are squashed and concealed, and have not been completely torn off.
Rashi on Job
in the navel Heb. בשרירי, like (Song 7:3), “Your navel (שררך).”