And every person who has set his hope on this [i.e., of being like Jesus], will live [as] purely [as possible], just as He [i.e., Jesus Himself] is pure.

No one who has been [spiritually] conceived [and eventually born] by God continues to live a sinful life, because God's seed [i.e., His word, See Luke 8:11] continues to live in his heart, so he cannot [continue a life of] sin, because he has been conceived by God.

Every person who hates his brother is a murderer [in God's sight]; and you [surely] know that no murderer has [the hope of] never ending life remaining in his heart.