Now therefore perform the doing of it; that as there was a readiness to will, so there may be a performance also out of that which you have.
All Commentaries on 2 Corinthians 8:11 Go To 2 Corinthians 8
Ambrosiaster
AD 400
Paul is saying that the Corinthians should give as much as they are willing and able to give. That way their conscience would become clear and not be clouded by pretense, pleasing man but not God. Commentary on Paul’s Epistles.