"I have written unto you, young men, because ye are strong, and the word of God abideth in you, and ye have overcome the wicked one." (1 John 2:14)

"And hereby do we know that we know him, if we keep his commandments." (1 John 2:3)

"If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness." (1 John 1:9)

The Bible book in which this glorious promise is given was written entirely to the saint of God, not to the unbelieving sinner.

". . .and truly our fellowship is with the Father, and with his Son Jesus Christ." (1 John 1:3)

And Jesus said unto him, No man, having put his hand to the plough,
and looking back, is fit for the kingdom of God. (Luke 9:62)