1 John 2:6-8 Revised Standard Version Catholic Edition (RSVCE)
6 he who says he abides in him ought to walk in the same way in which he walked.
A New Commandment
7 Beloved, I am writing you no new commandment, but an old commandment which you had from the beginning; the old commandment is the word which you have heard. 8 Yet I am writing you a new commandment, which is true in him and in you, because[a] the darkness is passing away and the true light is already shining.