Albert Barnes Commentary Philippians 1:19

"For I know that this shall turn out to my salvation, through your supplication and the supply of the Spirit of Jesus Christ," — Philippians 1:19 (ASV)

For I know that this shall turn to my salvation. It will be a means of my salvation. Whether the effect will be to turn public favor towards the Christian religion and secure my release, or whether it will be to instigate my enemies more, so as to lead to my death, I am satisfied that the result, so far as I am concerned, will be well.

The word "salvation," here, does not refer to his release from captivity, as Koppe, Rosenmuller, Clarke, and others suppose; for he was not absolutely certain of that, and could not expect that to be effected by "the supply of the Spirit of Jesus Christ." But the meaning is that all these dealings, including his imprisonment and especially the conduct of those who thought to add affliction to his bonds, would be among the means of his salvation. Trying and painful as all this was, yet Paul reckoned trial and pain among the means of grace; and he had no doubt that this would prove so.

Through your prayer. (See 2 Corinthians 1:11.)

And the supply of the Spirit of Jesus Christ. This supply was to sustain me and to cause those happy results to come out of these trials. He needed the same Spirit that Jesus Christ had to enable him to bear his trials with patience and to impart to him the consolations he required. He had no idea that these trials would produce these effects of their own accord, nor that this could be by any strength of his own.