Parallel
1 Peter 1:22
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
Τὰς ψυχὰς ὑμῶν ἡγνικότες ἐν τῇ ὑπακοῇ τῆς ἀληθείας διὰ πνεύματος εἰς φιλαδελφίαν ἀνυπόκριτον, ἐκ καθαρᾶς καρδίας ἀλλήλους ἀγαπήσατε ἐκτενῶς·
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).