Whenever we make anything a must do prior to God saving us, and God saves us because of that we must do ir have done, we automatically forfeit salvation by Grace and come under the opposing view of salvation by works.
If a person says that they were saved after they obeyed, or after they believed, this person is in essence saying, salvation is of myself, of my work, and whether they admit it or not, they have something to boast of. Yet Gods word insists that salvation is the Gift of God, not of man, its not of works lest any man boast Eph 2:8-9
8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
9 Not of works, lest any man should boast.
If a person says that they were saved after they obeyed, or after they believed, this person is in essence saying, salvation is of myself, of my work, and whether they admit it or not, they have something to boast of. Yet Gods word insists that salvation is the Gift of God, not of man, its not of works lest any man boast Eph 2:8-9
8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
9 Not of works, lest any man should boast.