1 Peter 1:22

Wherefore, having purified your souls by obeying the truth, through the Spirit, to unfeigned brotherly love, love one another, from a pure heart, fervently:

1 John 3:3

And every one who has this hope in him purifies himself, even as He is pure.

Treasury of Scripture Knowledge

Summary

If a man therefore purge himself from these, he shall be a vessel unto honour, sanctified, and meet for the master's use, and prepared unto every good work.

Bible References

Purge

1 Peter 1:22
Wherefore, having purified your souls by obeying the truth, through the Spirit, to unfeigned brotherly love, love one another, from a pure heart, fervently:
1 John 3:3
And every one who has this hope in him purifies himself, even as He is pure.