American Standard Version (ASV):
Seeing ye have purified your souls in your obedience to the truth unto unfeigned love of the brethren, love one another from the heart fervently:
King James Version (KJV):
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: