And the LORD said unto Satan, Behold, he is in thine hand; but save {g} his life.

(g) Thus Satan can go no further in punishing than God has limited him.

Wesley's Notes

2:6 In thine hand - If God did not chain up the roaring lion, how soon would he devour us! As far as he permits the wrath of Satan and wicked men, to proceed against his people, he will make it turn to his praise and theirs, and the remainder thereof he will restrain. Job, in being thus maligned of Satan, was a type of Christ. He had permission to bruise his heel, to touch his bone and his flesh; yea, and his life also; because by dying he was to do what Job could not do, to destroy him that had the power of death.

King James Translators' Notes

but: or, only

Jamieson-Fausset-Brown Bible Commentary

6. but save-rather, "only spare his life." Satan shows his ingenuity in inflicting pain, and also his knowledge of what man's body can bear without vital injury.

Matthew Henry's Concise Commentary

2:1-6. How well is it for us, that neither men nor devils are to be our judges! but all our judgment comes from the Lord, who never errs. Job holds fast his integrity still, as his weapon. God speaks with pleasure of the power of his own grace. Self-love and self-preservation are powerful in the hearts of men. But Satan accuses Job, representing him as wholly selfish, and minding nothing but his own ease and safety. Thus are the ways and people of God often falsely blamed by the devil and his agents. Permission is granted to Satan to make trial, but with a limit. If God did not chain up the roaring lion, how soon would he devour us! Job, thus slandered by Satan, was a type of Christ, the first prophecy of whom was, that Satan should bruise his heel, and be foiled.