Thematic Bible: Who purifies their soul

See what love the Father has given to us, that we should be called the children of God. For this reason the world knows us not, because it knew him not. Beloved, now are we children of God, and what we shall be has not yet been manifested; we know that if it is manifested we shall be like him, for we shall see him as he is. And every one that has this hope in him purifies himself, even as he is pure.

knowing that ye have been redeemed, not by corruptible things, as silver or gold, from your vain conversation handed down from your fathers, but by precious blood, as of a lamb without blemish and without spot, the blood of Christ, foreknown indeed before the foundation of the world, but who has been manifested at the end of times for your sakes, read more.
who by him do believe on God, who has raised him from among the dead and given him glory, that your faith and hope should be in God. Having purified your souls by obedience to the truth to unfeigned brotherly love, love one another out of a pure heart fervently; being born again, not of corruptible seed, but of incorruptible, by the living and abiding word of God.