NET
22 You have purified your souls by obeying the truth in order to show sincere mutual love. So love one another earnestly from a pure heart.
Darby
22 Having purified your souls by obedience to the truth to unfeigned brotherly love, love one another out of a pure heart fervently;
KJV
22 Seeing ye have purified your souls in obeying the truth through the Spirit unto unfeigned love of the brethren, [see that ye] love one another with a pure heart fervently: