I'm of the OSAS and believe that if Jesus Christ has saved you from your SINS you can never perish... But I believe you can lose the Joy of that Salvation whom David implores the Lord God to restore in Psalms 51:12. Notice the heading in your bibles this was after David had sinned against God with Bathsheba... We all know the story! We can draw types and shadows between David and Jesus... Jesus coming from the lineage of David but that's another deep topic entirely. So are there two types of Salvation... Timely and Eternal?