New Defender's Study Bible Notes
1:12 in thy power. Satan here is proposing a scientific experiment, as it were, testing Job’s professed faith in God by causing him to suffer great loss. God is allowing it, at least in Job’s case, knowing that Job’s faith will not fail, thus demonstrating to “the principalities and powers in the heavenly places...the manifold wisdom of God” (Ephesians 3:10).
1:21 return thither. Job was obviously not expecting to return to his mother’s womb. He was “worshipping” when he spoke these words (Job 1:20), acknowledging that his soul had come from God and would return to God. Note also that when Job blessed the name of “the LORD,” he was using the name Jehovah. He knew God as Redeemer as well as the Creator God (Elohim).
1:22 sinned not. It is evident from this verse that questioning God, or blaming him, when circumstances go against a believer, is sin. Job suffered probably more than anyone in history (except Christ), yet he continued to trust in God. With the greatest wealth in the whole region, he suddenly became the poorest man; with a wonderful family of ten children, he suddenly lost them all. Nevertheless, his faith persevered.