JMNT(i)
12 Now the Lord [=Yahweh or Christ] might at some point make you increase (or: be more than enough; be augmented; [note: in quality and/or quantity]), even to be abundantly surrounded and furnished (to super-abound) by love (or: to love; for love; in love; with love) unto each other and into everyone (or: all mankind), even as we also into you,
13 to establish (firmly fix; set fast) your hearts blameless and without defect (or: to make stable your unblamable hearts) in set-apartness (or: holiness; sacredness) in front of our God and Father, within the presence of our Lord Jesus with all His set-apart folks (holy peoples; sacred ones).