2 Corinthians 4:15

For all things are for your sakes Cf. 1 Corinthians 3:22, as well as the numerous passages in that Epistle where the well-being of mankind is represented as St Paul's (and indeed God's) only object, e.g. 1 Corinthians 6:12; 1 Corinthians 10:23.

that the abundant grace Literally, that grace having abounded. There is a very similar passage in ch. 2 Corinthians 1:11. And this passage, like that, is capable of being construed in various ways. We may either take it (1) that grace, having abounded, might multiply on account of the thanksgiving of the greater number; or (2) that grace, having abounded, may by means of the greater number, multiply the thanksgiving to the glory of God, or (3) that grace, having abounded through the greater number, may multiply the thanksgiving to the glory of God. The last would seem the preferable rendering. For (1) God's grace or favour abounds the more, the greater the number who are turned to Him, (2) the larger the number of converts, the greater the thanksgiving to God (for this use of -the greater number, see 1 Corinthians 9:19); and (3) the word translated -redound" in the A. V. has also the transitive sense of -make to abound," as in Ephesians 1:8; 1 Thessalonians 3:12, and ch. 2 Corinthians 9:8. The Greek here, as in 2 Corinthians 4:11, indicates God's purpose, which having its origin in His love, issues in beneficence. In the happiness and gratitude of the beings He has created, He has thought fit to find His own.