Might I ask a question of those that do not believe in OSAS ? If it is possible to lose our salvation how can we then be saved again ?
Heb 7:27 Who needeth not daily, as those high priests, to offer up sacrifice, first for his own sins, and then for the people's: for this he did once, when he offered up himself.
Heb 9:7 But into the second went the high priest alone once every year, not without blood, which he offered for himself, and for the errors of the people:
Heb 9:12 Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us.
Heb 9:26 For then must he often have suffered since the foundation of the world: but now once in the end of the world hath he appeared to put away sin by the sacrifice of himself.
Heb 9:27 And as it is appointed unto men once to die, but after this the judgment:
Heb 9:28 So Christ was once offered to bear the sins of many; and unto them that look for him shall he appear the second time without sin unto salvation.
I am not trying to stir debate but I have never heard a satisfactory answer to the above question.