God foreknew people would believe the gospel when it would be preached to them. No individual was ever unconditionally pre-chosen by God to be His apart from their free will or the word being preached to them.
So God saw that Paul was going to receive Jesus as his personal Savior just as soon as he had decimated the Christian population of the middle East?
Based on that foreknowledge - He just said something like, "What the heck! I'm not doing anything today. I think I'll appear on the road into Damascus, knock this guy Paul down, strike him blind, identify myself to him as the Messiah, send him one of my disciples to give him the gospel and just save him today rather than wait him out."
"Beside - Ananias is in the neighborhood and this will be a good chance for me to test his faith a little and see how good he is at preaching."
"I'll print the story in a book so other believers can see just exactly how it happened and have no doubt as to how this thing played out in the case of the man who will write a good percentage of the N.T."
"I know it will look to those in the coming Reformation like classic unconditional election. But I won't have to worry about people in the 21st century believing garbage like that. Heck - they'll be so sensitive to to how I do and don't do things by then and have such a good handle on what would be or wouldn't be fair for me to do that they will never fall for that kind of bad theology."
"It isn't predestination for Me to be thinking and planning like this and it sure won't be unconditional election - because based on my foreknowledge, I know that he will tire of killing my people after some more time passes, get into the Word a little more and realize where he's going wrong wrong. It'll be Paul's free will choice then for sure and I won't be infringing on his will. That's all important to me as it is for every person who happens to be under my well deserved curse."
Clearly that isn't how it worked. It also isn't how it works for any other child of wrath who is dragged to the Son by the Father and has his eyes opened by the Spirit of God so that he can say "Jesus is Lord" by that same Spirit.
Of course it was my choice to receive Jesus as Lord when I heard the Word preached to me. Of course it was your choice to receive Jesus as Lord when you heard the Word preached to you. Of course it was Paul's choice to receive Jesus as Lord when he heard the Word preached to him.
But if you people don't see God initiating something which effected your will as He predestined to do then you don't believe that He was the one who
began the good work in you.
Quite likely, then, you don't necessarily believe that He will complete that good work in you simply because He has promised to keep that which you entrusted to Him against the day of judgement.
God's predestination of all that happens in His creation, His election of people like you and me and Paul who don't deserve salvation because of anything inherent in our wretched cursed nature, our will being effected by the Holy Spirit in order to proclaim Jesus as Lord, and His promise to finish the work which
HE began in us - are some of the most clear doctrines in the Word of God.
If you people don't believe what is taught in His Word it is likely (as I see it) because you have judged what you believe would and would not be a fair thing to do by the creator of all things.
God is the one who decides what is and isn't fair and it is all for His glory that He makes those decisions.
Ours is not to judge what would and would not be fair for God to do. Ours is but to believe what He has said He did and will do in the future.
We are creatures, created in God's image, and with a will of our own. But we aren't God.