The Bible un-apologetically holds that God is Sovereign and that we are responsible. Paul hits that wall over and over in Romans 9 and 10. Romans 9 concludes that it is all in God’s election. Romans 10 says we better get busy spreading the word. I’d be lying if I thought there was really a solution to that. It is the same way that Bible holds that God is unchangeable, and yet he answers prayer.
Romans 10 talks about believing with our heart and confessing with our mouth. Christians actively do that, yet both of those are passively worked in us through the word that has drawn near. Hearts of stone turned into flesh. Halting words made to sing. And its the full person. Not a dry confession without the heart. Not the heart without some content. God takes heart and mind and makes them new.
What you can say is that the Christian can put God against God. The terrible unknowable eternal decrees can be place against the promises and the demonstration of love in Christ. God, you said he did it for all. That includes me. I’ll take that.