1 John 2:2-4 Revised Standard Version Catholic Edition (RSVCE)
2 and he is the expiation for our sins, and not for ours only but also for the sins of the whole world. 3 And by this we may be sure that we know him, if we keep his commandments.[a] 4 He who says “I know him” but disobeys his commandments is a liar, and the truth is not in him;
1 John 2:2-4 New International Version (NIV)
2 He is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world.
Love and Hatred for Fellow Believers
3 We know that we have come to know him if we keep his commands. 4 Whoever says, “I know him,” but does not do what he commands is a liar, and the truth is not in that person.