Losing One's Salvation: Could you comment on the believer's ability (or inability) to lose one's salvation? [Hebrews 10:26, Romans 8:31, John 6:37, James 3:2, I John 2:1, Romans 7:17, Romans 7:20, Jeremiah 31:33-34, Hebrews 10:26]. Sin & Repent Cycle: What about those who seem to fall away and into sin and then frequently swing back and forth? [I Timothy 4:1].