"....the part to be done by the lord Christ in salvation has been perfected on the cross.this is true,but man has to try to attain such salvation offered on the cross......the part of the Lord Christ has been perfected but what about our part?There is a human role we should perform.....among which are following:-1 FAITH:through Faith as a first step we attain the salvation perfected on the cross........(jn. 8:24;3:16;acts 16:31).........2.BAPTISM:salvation is perfected but we attain it only through baptism.........(mk. 16:16)......."