2:9 for every man. Note that Jesus did not die merely for “the sin of the world” (John 1:29), but for “every man” individually. Furthermore, as Paul says, Christ “loved me, and gave Himself for me” (Galatians 2:20)!

2:10 all things. Compare Romans 11:36; Colossians 1:16-20; Hebrews 1:1-3.

2:10 captain of their salvation. “Captain” (Greek archegos) is translated “prince” in Acts 3:15 and 5:31 and “author” in Hebrews 12:2, speaking of Christ in all cases. These are its only occurrences. Thus, He is the “Prince of life,” the “captain of our salvation” and the “author…of our faith.”

2:10 perfect through sufferings. To the question as to how the holy God could be “made perfect,” the answer is that if He would also be perfect man, He must learn obedience to the will of the Father, and true obedience can only be tested if it involved suffering. See Hebrews 5:8,9.