1 John 2:3-11

³By this we know that we have come to know Him, if we keep His commandments. ⁴The one who says, “I have come to know Him,” and does not keep His commandments, is a liar, and the truth is not in him; ⁵but whoever follows His word, in him the love of God has truly been perfected. By this we know that we are in Him: ⁶the one who says that he remains in Him ought, himself also, to walk just as He walked.

⁷Beloved, I am not writing a new commandment to you, but an old commandment which you have had from the beginning; the old commandment is the word which you have heard. ⁸On the other hand, I am writing a new commandment to you, which is true in Him and in you, because the darkness is passing away and the true Light is already shining. ⁹The one who says that he is in the Light and yet hates his brother or sister is in the darkness until now. ¹⁰The one who loves his brother and sister remains in the Light, and there is nothing in him to cause stumbling. ¹¹But the one who hates his brother or sister is in the darkness and walks in the darkness, and does not know where he is going because the darkness has blinded his eyes.