I John 2:3-17

New King James Version

3Now by this we know that we know Him, if we keep His commandments. 4He who says, “I know Him,” and does not keep His commandments, is a #Rom. 3:4liar, and the truth is not in him. 5But #John 14:21, 23whoever keeps His word, truly the love of God is perfected #(1 John 4:12)in him. By this we know that we are in Him. 6#John 15:4He who says he abides in Him #Matt. 11:29; John 13:15; 15:10; 1 Pet. 2:21ought himself also to walk just as He walked.
7Brethren, I write no new commandment to you, but an old commandment which you have had #John 13:34; 1 John 3:11, 23; 4:21; 2 John 5from the beginning. The old commandment is the word which you heard from the beginning. 8Again, #John 13:34; 15:12a new commandment I write to you, which thing is true in Him and in you, #Rom. 13:12; Eph. 5:8; 1 Thess. 5:4because the darkness is passing away, and #(John 1:9; 8:12; 12:35)the true light is already shining.
9#(1 Cor. 13:2); 1 John 3:14He who says he is in the light, and hates his brother, is in darkness until now. 10#(1 John 3:14)He who loves his brother abides in the light, and #2 Pet. 1:10there is no cause for stumbling in him. 11But he who #(1 John 2:9; 3:15; 4:20)hates his brother is in darkness and #John 12:35; 1 John 1:6walks in darkness, and does not know where he is going, because the darkness has blinded his eyes.
Their Spiritual State
12I write to you, little children,
Because #(1 Cor. 6:11)your sins are forgiven you for His name’s sake.
13I write to you, fathers,
Because you have known Him who is #John 1:1; Rev. 22:13from the beginning.
I write to you, young men,
Because you have overcome the wicked one.
I write to you, little children,
Because you have #(Rom. 8:15–17; Gal. 4:6)known the Father.
14I have written to you, fathers,
Because you have known Him who is from the beginning.
I have written to you, young men,
Because #Eph. 6:10you are strong, and the word of God abides in you,
And you have overcome the wicked one.
Do Not Love the World
15#(Rom. 12:2); Gal. 1:4; James 1:27Do not love the world or the things in the world. #Matt. 6:24; James 4:4If anyone loves the world, the love of the Father is not in him. 16For all that is in the world—the lust of the flesh, #(Eccl. 5:10, 11)the lust of the eyes, and the pride of life—is not of the Father but is of the world. 17And #1 Cor. 7:31; 1 Pet. 1:24the world is passing away, and the lust of it; but he who does the will of God abides forever.