Freedom to serve in love (5:13–15)

Says “For you, brothers, were called to freedom; but do not use your freedom as an opportunity for the flesh”. The clause μὴ τὴν ἐλευθερίαν εἰς ἀφορμὴν τῇ σαρκί (mē tēn eleutherian eis aphormēn tē sarki, “not freedom as an opportunity for the flesh”) has no verb in the Greek; the BSB supplies “do not use.” “Rather, serve one another in love” (διὰ τῆς ἀγάπης δουλεύετε ἀλλήλοις (dia tēs agapēs douleuete allēlois, “through love serve one another”); see ἀγάπη). “The entire law is fulfilled in a single decree: “Love your neighbor as yourself.”” (ὁ γὰρ πᾶς νόμος ἐν ἑνὶ λόγῳ πεπλήρωται (ho gar pas nomos en heni logō peplērōtai, “the whole law has been fulfilled in one word”), perfect). The citation is treated in Gal 5:14 → Lev 19:18; the same command in Romans is treated in The debt of love and the fulfillment of the law (Romans 13:8–10), Rom 13:9–10: "Love your neighbor as yourself" (Lev 19:18) in the MT and LXX and Rom 13:9 → Lev 19:18. The wording is treated in Freedom, love, and the whole law (5:13–15).

Says “if you keep on biting and devouring one another, watch out, or you will be consumed by one another”.

Implies Serving one another in love is the right use of the freedom for which they were called, and it fulfills the whole law. That use stands over against biting and devouring one another.