1 Peter 1:14-16

1:14 Like obedient children, do not comply with the evil urges you used to follow in your ignorance, 1:15 but, like the Holy One who called you, become holy yourselves in all of your conduct, 1:16 for it is written, “You shall be holy, because I am holy.”

1 Peter 1:22

1:22 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.