John Calvin Commentary 2 Corinthians 6:12

"Ye are not straitened in us, but ye are straitened in your own affections." — 2 Corinthians 6:12 (ASV)

Ye are not straitened in us. That is, “It is due to your own fault that you are not able to share in this feeling of cheerfulness, which I have for you. My mouth is opened, so that I speak openly with you; my very heart would willingly pour itself out, but you close off your hearts.” He means to say that it is due to their corrupt judgment that the things he says are not appreciated by them.