Except the God calls everyone one repent, but not everyone is saved.I already stated, its to give evidence of having been saved, its a blessing of Salvation. Its a Gift from the Saviour Acts 5 31
31 Him hath God exalted with his right hand to be a Prince and a Saviour, for to give repentance to Israel, and forgiveness of sins
That word give is the greek word didómi and means:
to give something to some one — in various senses;
1. of one's own accord to give one something, to his advantage; to bestow, give as a gift
It causes the forgiven one to repent
Much love!