1 John 3:3
King James Version
“And every man that hath this hope in him purifieth himself, even as he is pure.”
Context
1Behold, what manner of love the Father hath bestowed upon us, that we should be called the sons of God: therefore the world knoweth us not, because it knew him not.
2Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.
3And every man that hath this hope in him purifieth himself, even as he is pure.
4Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.
5And ye know that he was manifested to take away our sins; and in him is no sin.
6Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither known him.