From the experience which Paul had in these various circumstances of life, he comes here to the general conclusion that he could "do all things." He could bear any trial, perform any duty, subdue any evil propensity of his nature, and meet all the temptations incident to any condition of prosperity or adversity. His own experience in the various changes of life had warranted him in arriving at this conclusion; and he now expresses the firm confidence that nothing would be required of him which he would not be able to perform. In Paul, this declaration was not a vain self-reliance, nor was it the mere result of his former experience. He knew well where the strength was to be obtained by which to do all things, and on that arm that was able to uphold him he confidently relied.
- Barnes Commentary
