John Trapp on 2 Corinthians 12:9

Verſe 9. My grace is ſufficient for thee] God ſometimes gives pardoning grace, where yet he denies prevailing grace. He roots not out all our Canaanites at once, but leaves ſome to try and exerciſe us.

For my ſtrength is made perfect] It is an act of as great power in God, to keep our ſpark of grace alive amidſt ſo many corruptions, as to keep a ſire alive upon the face of the ſea. The angels are kept with much leſſe care, charge and power then we; becauſe they have no biaſſe, no weight of ſin hung upon them.