I rejoice, because I have complete confidence in you.
In these verses the apostle endeavours to comfort the Corinthians, upon whom his admonitions had had such good effect. And in order thereto, 1. He tells them he had a good design in his former epistle, which might be thought severe, Co2 7:12.
Commenting on 2 Corinthians 7:12-16
I rejoice therefore that I have confidence in you in all things. That I can speak freely and boldly to you, reprove, admonish, and advise you, since you take it all in good part, as I design it; that I can confidently speak in your favour, boast of your love and obedience, which is found upon trial and by experience to be truth; and that...
Verse 16. I rejoice, therefore, that I have confidence, etc. I have had the most ample proof that you are disposed to obey God, and to put away everything that is offensive to him. The address of this part of the epistle, says Doddridge, is wonderful.