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.
22 Seeing ye have purified your souls, or, Purifying your souls. Erasmus badly renders the words, “Who have purified,” etc. For Peter does not declare what they had done, but reminds them of what they ought to do. The participle is indeed in the past tense, but it may be rendered as a gerund, “By purifying, etc.” The meaning is, that their souls would not...
Here the apostle begins his exhortations to those whose glorious state he had before described, thereby instructing us that Christianity is a doctrine according to godliness, designed to make us not only wiser, but better. I. He exhorts them to sobriety and holiness. 1. Wherefore gird up the loins of your mind, etc., Pe1 1:13.
Commenting on 1 Peter 1:13-23
Seeing ye have purified your souls,.... The apostle passes to another exhortation, namely, to brotherly love; the ground of which he makes to be, the purification of their souls; and which supposes that they had been impure; and indeed, their whole persons, souls and bodies, were so by nature; even all the members of their bodies, and all the powers and faculties of their souls...