Thematic Bible: Who purifies their soul

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

knowing that you were not redeemed from your vain mode of life received by tradition from your fathers, with destructible things, silver or gold, but with the precious blood of Christ, as of a lamb without blemish, and without a spot; who was foreknown before the foundation of the world, but made manifest in these last times for you, read more.
who through him believed in God, who raised him from the dead and gave him glory, so that your faith and hope may be in God. Having purified your souls by obeying the truth to unfeigned brotherly love, love one another fervently, from the heart, having been born again, not from destructible seed but from indestructible, through the word of God which lives and endures.