Please, prove it with scripture that says precisely what you claim.
They were first given grace, by which they believed.
[
Act 18:27 KJV] 27 And when he was disposed to pass into Achaia, the brethren wrote, exhorting the disciples to receive him: who, when he was come, helped them much
which had believed through grace:
[Act 13:48 ESV] 48 And when the Gentiles heard this, they began rejoicing and glorifying the word of the Lord,
and as many as were appointed to eternal life believed.
For those who truly believe that belief was given to them as a result of their salvation
[Phl 1:29 KJV] 29 For unto you
it is given in the behalf of Christ, not only to believe on him, but also to suffer for his sake;
No one can truly understand salvation in order to believe unless their sins have been first forgiven them
[
Luk 1:77 KJV] 77 To
give knowledge of salvation unto his people by the remission of their sins,
God must first unblind the spiritual minds of those who are to come to true belief. God does not do so for everyone - only for those
He has saved.
[2Co 4:3,4 KJV]
3 But if our gospel be hid, it is hid to them that are lost:
4 In whom
the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.