NET
1 Therefore, since we have these promises, dear friends, let us cleanse ourselves from everything that could defile the body and the spirit, and thus accomplish holiness out of reverence for God.
Darby
1 Having therefore these promises, beloved, let us purify ourselves from every pollution of flesh and spirit, perfecting holiness in God's fear.
KJV
1 Having therefore these promises, dearly beloved, let us cleanse ourselves from all filthiness of the flesh and spirit, perfecting holiness in the fear of God.