Here’s some that I copied and pasted from a site dedicated to the idea of predestination (this includes the line of editorial comment at the end):
Acts 13:48: And when the Gentiles heard this, they began rejoicing and glorifying the word of the Lord; AND AS MANY AS HAD BEEN APPOINTED TO ETERNAL LIFE BELIEVED.
John 1:12-13: But as many as received Him, to them He gave the right to become children of God, even to those who believe in His name, WHO WERE BORN NOT OF BLOOD, NOR OF THE WILL OF THE FLESH, NOR OF THE WILL OF MAN, BUT OF GOD.
Philippians 1:29: FOR TO YOU IT HAS BEEN GRANTED FOR CHRIST’S SAKE, NOT ONLY TO BELIEVE IN HIM, but also to suffer for his sake.
Romans 8:29-30: FOR WHOM HE FOREKNEW, HE ALSO PREDESTINED to become conformed to the image of His Son, that He might be the first-born among many brethren; and whom He predestined, these He also called; and whom He called, these He also justified; and whom He justified, these He also glorified.
Ephesians 1:5: HE PREDESTINED US to adoption as sons through Jesus Christ to Himself, according to the kind intention of His will.
Some He has elected to salvation, others He has not: “…for they stumble because they are disobedient to the word, and to this doom they were also appointed” (1 Pet. 2:8); And, "’What if God, although willing to demonstrate His wrath and to make His power known, endured with much patience vessels of wrath prepared for destruction? And He did so in order that He might make known the riches of His glory upon vessels of mercy, which He prepared beforehand for glory’ (Rom. 9:22-23). It seems quite clear that God prepares some for mercy and not others. That is sovereignty.”
As I said, I’m confident in the authority of the RCC, but I want to have the tools for a more persuasive conversation with Calvinists. While the idea of predestination seems very arbitrary, I will admit that these quotes would be convincing to someone who is not reading them in the context of our Tradition (as well as the remainder of Scripture). Thanks!
penWindow(‘cr/600.htm’)
To God, all moments of time are present in their immediacy. When therefore he establishes his eternal plan of “predestination”, he includes in it each person’s free response to his grace: “In this city, in fact, both Herod and Pontius Pilate, with the Gentiles and the peoples of Israel, gathered together against your holy servant Jesus, whom you anointed, to do whatever your hand and your plan had predestined to take place.” Acts 4:27-28; cf. Ps 2:1-2. For the sake of accomplishing his plan of salvation, God permitted the acts that flowed from their blindness. Cf. Mt 26:54; Jn 18:36; 19:11; Acts 3:17-18.