He already noted
Eph 2:8.
For by grace you have been saved through faith, and that not of yourselves;
it is the gift of GodEphesians 2:8.
No gift of salvation mentioned in Ephesians 2:8.
The gift mentioned is faith.
Nope. The "it" refers back to "you are saved". The gift is salvation, just as eternal life is a gift. They are synonymous.
The "it" is not in the original scriptures as indicated by the italics.
Even if it was,
it refers back to the previous mentioned subject which is
faith.
For by grace you have been saved through
faith, and that not of yourselves;
it is the gift of God, Ephesians 2:8
No gift of salvation mentioned in Ephesians 2:8
The gift mentioned is faith.
To give a gift "without regret" clearly means not to take it back.
Not at all.
If I give a gift to my son, and have to take it back, I can certainly do so, even if I don't regret it.
The bottom line is, irrevocable doesn't mean it in the way you are trying to uses it, since God certainly does remove what He gives us that leads to salvation.
Forgiveness or covenant relationship.
Case closed.
JLB