For if I make you sorry,.... That is, should he come among them, and be the means of fresh grief and sorrow:who is he then that maketh me glad? such was his love and affection for them, and sympathy with them, that should they be grieved, he should grieve also; they were the only persons he could take any delight in at Corinth; wherefore should they be in heaviness, he would be so too, and then what pleasure would he have in being among them?
since not a man of them would be in a condition and capacity to make him cheerful:but the same which is made sorry by me.