Christ as Saviour Gives Repentance to the elect, thats what a Saviour from sin does 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.
He also gave them forgiveness of sins, thats Salvation also
If I came over to your place and seen you working on your tractor, and there was part gone bad and it would take months to get it, say I have a similar tractor, and have that part in my tool room.
I give you that part as a gift, but why did I give you that gift?
To allow you to get your tractor going so you get to work.
The same is true with repentance, God offers you the gift for you to get your salvation nailed down.