Thesis XVII. Not only are people sunk in sin by nature and convicted of sin by the law; even after they are reborn by grace, they are far from giving the law a perfect obedience in every respect. Even the holiest fall into many sins every day.
So James says, 'We all stumble in many things' (margin: Jas. 3), and John in chapter 1 of his first epistle, 'If we say we have no sin, we deceive ourselves, and the truth is not in us.' The wise man agrees in Ecclesiastes 7: 'There is no righteous man on earth who does good and never sins.'
Latin
XVII. Verum non solum homines sunt per naturam peccato immersi, & per legem peccati convicti: sed etiam postquam sunt per gratiam renati, multum ab eo absunt ut undiquaque perfectum obsequium legi praestent. Etenim sanctissimi quique in multa peccata quotidie labuntur: Juxta illud Jacobi, In multis offendimus omnes. [marg.: Jac. 3.] Et Joannis epistola prima cap. 1. Si dixerimus quod peccatum non habemus, ipsi nos seducimus, & veritas in nobis non est. Quibus congruit quod pronunciat sapiens, Eccl. cap. 7. Non est homo justus in terra qui faciat bonum, & non peccet.