1 John 2:1-6
My little children, these things write I to you, that you sin not. And if any man sin, we have an advocate with the Father…
It is not asserted that you must be sinless before you are safe, but only that you must not presume that you are safe before the grace of God makes you long to be sinless. A soldier's uniform is to be worn only by a soldier, a student's gown only by a student, a saint's robe only by a saint. As we call him a soldier who has only just enlisted, as we call him a student who has only just entered college, we call him a saint who has only just begun to believe and has yet everything to learn and every thing to feel that belongs to the sanctified life. Still a saint he must be, one whose vocation it is to be holy, and who strives daily to obey the Divine voice within him that is ever saying "Sin not, sin not, sin not," or he can have no interest in the Saviour's righteousness.
(C. Stanford, D. D.)
Parallel VersesKJV: My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous: