Some precepts cannot be kept even outwardly without grace
Thesis II. The first question the Protestants ask, then, is whether man, corrupted by sin, can by the powers of his own free choice and without God's grace fulfil the precepts of the moral law, at least as to the matter of the work.
They answer with one accord that some precepts of the moral law cannot be kept by fallen man without grace, not even as to the matter of the work, or, in the Roman School's language, its substance. Such are the precept not to covet, and the precept to love God with all one's strength and above all things.
Latin
II. Primo igitur apud Protestantes quaeritur an homo per peccatum corruptus, sine Dei gratia, & propriis liberi sui arbitrii viribus, possit legis moralis praecepta, saltem quoad operis materiam, implere? Ad quod communi consensu Respondent, quaedam esse legis moralis praecepta quae, nequidem secundum operis materiam, sive ut Schola Romana loquitur substantiam, ab homine lapso sine gratia servari possunt. Quale est praeceptum de non concupiscendo, & de Deo totis viribus & supra omnia diligendo.