Romans 6:10 : For the death that he died, he died un-to sin once: but the life that he liveth, he liveth unto God. "Once" is from a word that means once for all, as may seen by noticing the marginal reading in the American Standard Version. It denies a repetition of the act. Jesus died once for all time. "But he, when he had offered one sacrifice for sins forever, sat down on the right hand of God" (Hebrews 10:12). This verse connects directly with the preceding verse. Jesus will die no more, for in the death that he died, he died for sins once for all time. He now lives unto God--unto the glory and honor of God. As Christians live with Christ, they also live so as to honor God. Hence, the admonition of the next verse.