All men (human beings) are born sinful and cannot save themselves. I was saved by God calling from spiritual death into new life - in spite of myself, not because of me. Read Romans 5:6-11
"6 For when we were yet without strength, in due time Christ died for the ungodly.
7 For scarcely for a righteous man will one die: yet peradventure for a good man some would even dare to die.
8 But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us.
9 Much more then, being now justified by his blood, we shall be saved from wrath through him.
10 For if, when we were enemies, we were reconciled to God by the death of his Son, much more, being reconciled, we shall be saved by his life.
11 And not only so, but we also joy in God through our Lord Jesus Christ, by whom we have now received the atonement."
Do you believe that the Crucifixion and Resurrection is necessary for everyone's Salvation?