Cap. VIII Resp.: Acts 10:34 concerns promised favor in every nation, not the eternal gratuitous decree
As for Peter's words (Acts 10:34) — Of a truth I perceive that God is not an acceptor of persons, but in every nation he who fears him and works righteousness is accepted with him — they regard God's favor from covenant and promise, already as it were owed, not that eternal gratuitous favor bound by no covenant or promise. For by promising favor to those who fear him and live holily and piously, God would already be an acceptor of persons if he spurned a poor or lowly man worshipping him chastely and embraced a rich noble, or if he favored a religious Jew and neglected a Gentile living justly, soberly, and piously. That respect of persons the Apostle teaches is far from God. But God is held by no promise or covenant to predestinate or not predestinate.
Latin
Quod autem attinet ad illa Petri verba, Actor. x. 34, In veritate comperi quia non est personarum acceptor Deus, sed in omni gente qui timet eum et operatur justitiam, acceptus est ei, Spectant Dei favorem ex pacto et promisso jam quasi debitum, non aeternum illum et gratuitum favorem nullo pacto, nullo promissione obstrictum aut obligatum. Deus enim promittendo favorem suum timentibus se, ac sancte pieque viventibus, esset jam προσωπολημψία, si hominem pauperem aut ignobilem caste se colentem aspernaretur, divitem autem ac nobilem amplexaretur; aut si Judaeum religiosum favore suo prosequeretur, Gentilem vero juste, sobrie ac pie viventem negligeret. Hanc personarum acceptionem a Deo procul habendam docet Apostolus. At Deus nullo promisso aut pacto tenetur ad praedestinandum, vel non praedestinandum.