Once (apax). "Once for all" (verse John 26 ) as already stated. Shall appear a second time (ek deuterou opqhsetai). Future passive indicative of oraw. Blessed assurance of the Second Coming of Christ, but this time "apart from sin" (cwri amartia, no notion of a second chance then). Unto salvation (ei swthrian). Final and complete salvation for "them that wait for him" (toi auton apekdecomenoi). Dative plural of the articular participle present middle of apekdecomai, the very verb used by Paul in Philippians 3:20 of waiting for the coming of Christ as Saviour.