Romans 6:8-11

Romans 6:8-11. Now if we be dead with Christ, we believe that we shall also live with him: knowing that Christ being raised from the dead dieth no more; death hath no more dominion over him. For in that he died, he died unto sin once: but in that he liveth, he liveth unto God. Likewise reckon ye also yourselves to be dead indeed unto sin, but alive unto God through Jesus Christ our Lord.

If Christ could die again, then believers might lose their spiritual life, and there might be such a thing as falling from grace; but while Jesus lies, no member of his mystical body can die. His own promise is "Because I live ye shall live also." He died unto sin once; we do the same. He lives no more to die; we also do the same. Highly privileged are they who are dead with Christ, and blessed is that ordinance in which we set forth our death and burial with him.