Parallel
1 Peter 1:22
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
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:
Since you have purified your souls by obedience to the truth so that you have a genuine love for your brothers, love one another deeply, from a pure heart (note: SBL, NE, and WH from the heart).