Exactly Brother, if not for the Fall, God's Chosen Ones Eph. 1:4 would never experience the Glory of His Grace Eph. 1:6 in Salvation from sin, which was already Given them before the World began.
2 Tim. 1:9
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,
And so God brings that Spiritual Life to Light for everyone of them for whom Christ Died and thus Saved, and gives them Hearing ears Prov. 20:12 to Hear the Gospel of their Salvation, which is Spiritual 1 Cor. 2:13, after they are Born Again John 3:3, or Born from above, as a result of the Preaching of the Gospel, The Word of Truth Rom. 10:15.
2 Tim. 1:10
But is now made manifest by the appearing of our Saviour Jesus Christ, who hath abolished death, and hath brought life and immortality to light through the gospel:
James 1:18
Of his own will begat he us with the word of truth, that we should be a kind of firstfruits of his creatures.
So their Trusting and Believing in Christ is not something they do in the flesh Rom. 8:8, but is the result of them being Born of God and having been sealed with the Spirit of Promise !
Titus 3:5
Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost;