1 john 3:5 And ye know that he was manifested to take away our sins; and in him is no sin.
6 Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither known him.
These verses help us to see how we are to live without sin. Jesus came to this earth and lived a sinless life and took our sin upon Himself on the cross. We do not have to live with sin in our life if we put Christ first in our life. We are by no means perfect like Him but we are to strive daily to live the life He would have for us. It is a commitment we have to make every day to live a sin free life and ask for repentance when we fall. For those who proclaim to be Christians but continue to commit the same sin everyday never knew Jesus to begin with and until they decide to commit their lives to Him they will never know Him. If we are striving every day to abide in Christ then He will abide with us to help us to resist sin.