Third objection: grace would give only the powers, not the willing and doing (Philippians 2:13)
Moreover, if God's grace merely moves, prepares and stirs people to will and to carry out what he commands, in such a way that the willing and doing themselves can fail to follow in a person once grace is given, and in fact often do fail, then grace produces in a person the strength or the dispositions needed for willing and doing good, but not the willing and doing themselves.
The Apostle testifies the opposite: it is God who works in us both to will and to do for his good pleasure (Philippians 2:13).
Latin
XXXIX. Adde quod si gratia divina sic tantum homines movet, praeparat & incitat ad volendum & perficiendum ea quae Deus jubet, ut tamen ipsum velle & perficere, ea posita, possit in homine non sequi, & de facto saepe non sequatur, operatur illa quidem in homine vires seu dispositiones necessarias ad bonum volendum & perficiendum, non autem ipsum velle & perficere. Sed Apostolus contra testatur, Deum esse qui operatur in nobis & velle & perficere pro bona voluntate. Phil. 2. 13.