Behind Romans 9-11 stand the first eight chapters, where ‘the reality of the mercy of God is never far from Paul’s thought’. [C.E.B. Cranfield] It is as if all God’s merciful deeds, expounded so far in the letter, make their own appeal in Paul’s exhortation. The invitation to join in the praise of God (11:33-6) leads to the challenge for his readers to respond to the mercies of God with the offering of their ‘bodies’ as a living sacrifice. The ‘therefore’ in Romans 12:1 is to be given its full force.
—David Peterson, “Worship and Ethics in Romans 12,” Tyndale Bulletin 44.2 (1993):280