When you become 'Born Again', the life of sin loses its charms for you. If Mr. Sin did a roll call, you would be counted absent, as you are now not only sick of sin, but you are 'dead', or unresponsive to sin. Instead, you reject sin, MORTIFY sin, walk away from anything remotely resembling sin. Now you are busy living your life in Christ, for His sake, for goodness', righteousness', and holiness' sake.

...Christ also suffered for us, leaving us an example, that ye should follow in His steps... who His own self bare our sins in His own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes ye were healed. 1 Peter 2:21, 24