This rare and uncertain verb possibly means to spring or leap, though its meaning is disputed. Job uses it in a difficult passage: 'I would spring in my anguish' or 'I would exult in my pain.' The verb appears nowhere else, making its meaning a matter of educated guessing based on later Hebrew usage, where it can mean to start or pull back (as from fire). Some interpreters connect it to the idea of recoiling or shrinking back, while others prefer 'leap for joy' based on context. Job's point seems to be that if he could be certain of God's purposes, even suffering would produce some kind of triumphant response.