The Truth of unconditional election is seen in Rom 9 speaking on the Purpose of Election Rom 9:11
11 (For the children being not yet born, neither having done any good or evil, that the purpose of God according to election might stand, not of works, but of him that calleth)
It took place before the vessels were ever born to do any acts, then its declared to be , then look at Vs 16
16 So then it is not of him that willeth, nor of him that runneth, but of God that sheweth mercy.
The false religions of man says it is of the person that willeth !
Its declared to be not of works which covers a wide variety of conditions Rom 9:11
11 (For the children being not yet born, neither having done any good or evil, that the purpose of God according to election might stand, not of works, but of him that calleth)
2 Tim 1:9
9 Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began,
Rom11:5-6
5 Even so then at this present time also there is a remnant according to the election of grace.
6 And if by grace, then is it no more of works: otherwise grace is no more grace. But if it be of works, then it is no more grace: otherwise work is no more work.