1 John 1:6-7; 1 John 2:6; 1 John 2:11

1 John 1:6-7

6 If we say that we have fellowship with Him and yet walk in the darkness, we lie and do not practice the truth;

7 but if we walk in the Light as He Himself is in the Light, we have fellowship with one another, and the blood of Jesus His Son cleanses us from all sin.

1 John 2:6

6 the one who says he abides in Him ought himself to walk in the same manner as He walked.

1 John 2:11

11 But the one who hates his brother is in the darkness and walks in the darkness, and does not know where he is going because the darkness has blinded his eyes.