Dort: grace efficacious of itself (rejection of errors 8 and 9)
Thesis XLI. All the Reformed who follow the Synod of Dort hold in common that the grace of God, to which man's conversion and all the good works that follow it must be credited, is efficacious of itself. Its efficacy in no way depends on the cooperation or consent of the human will, since grace itself causes that infallible consent or cooperation.
This agrees with the decrees of that Synod. In the rejection of errors on the third and fourth articles, canon 8, it condemns those who teach 'that in regenerating a person God does not use those powers of his omnipotence by which he would bend the person's will to faith and conversion with power and without fail; but that, with every working of grace that God uses for converting a person in place, the person can still resist God and the Spirit who intends and wills to regenerate him, and often actually does, so as to prevent his own regeneration entirely, and so it remains in his own power whether he is regenerated or not.'
In canon 9 it also condemns those who teach 'that grace and free choice are partial causes acting together at the start of conversion, and that grace does not come before the will's own working in the order of causes'; that is, 'that God does not effectively help a person's will toward conversion before that will moves and determines itself.'
Latin
XLI. Etenim communis est Reformatorum omnium, qui Dordracenam Synodum sequuntur, sententia, gratiam Dei, cui tribuenda est hominis conversio, & omnia quae eam subsequuntur bona opera, esse efficacem per se, nec ejus efficaciam ullo modo pendere a cooperatione, sive consensu voluntatis humanae, cum causa sit infallibilis istius consensus, sive cooperationis. Idque congruenter decretis istius Synodi. Siquidem in rejectione errorum circa tertium & quartum articulum Canone 8. damnat eos qui docent Deum in hominis regeneratione eas suae omnipotentiae vires non adhibere, quibus voluntatem ejus ad fidem & conversionem potenter & infallibiliter flectat: sed positis omnibus gratiae operationibus, quibus Deus ad hominem convertendum utitur, hominem tamen Deo, & spiritui regenerationem ejus intendenti, & regenerare ipsum volenti, ita posse resistere, & actu ipso saepe resistere, ut sui regenerationem prorsus impediat, adeoque in ipsius manere potestate, ut regeneretur, vel non regeneretur. Canone vero nono damnat eos quoque qui docent, Gratiam & liberum arbitrium esse causas partiales simul concurrentes ad conversionis initium; nec gratiam ordine causalitatis, efficientiam voluntatis antecedere: Id est, Deum non prius hominis voluntatem efficaciter juvare ad conversionem, quam voluntas ipsa hominis se moveat ac determinet.