Albert Barnes Commentary 2 Corinthians 7:6

"Nevertheless he that comforteth the lowly, [even] God, comforted us by the coming of Titus;" — 2 Corinthians 7:6 (ASV)

God that comforteth those that are cast down. His characteristic is that He gives consolation to those who are anxious and depressed. All his consolation was in God; and by whatever instrumentality comfort was administered, he regarded and acknowledged God as the Author (see Barnes on 2 Corinthians 1:4).

By the coming of Titus. To Macedonia. He rejoiced not only in seeing him again, but especially in the news he brought concerning the success of his epistle and the conduct of the church at Corinth.