Gordon Fee and New Covenant Theology

On 1 Corinthians 9:19-23:

"For Paul the language 'being under (or 'keeping') the law' has to do with being Jewish in a national-cultural-religious sense; but as a new man in Christ he also expects the Spirit to empower him (as well as all of God's new people) to live out the ethics of the new age, which are the 'commands of God' (7:19) now written on hearts of flesh (cf. Ezek. 36:26-27)."

Also see:

Doug Moo and NCT 1, 2, 3
Bruce and NCT
Longenecker and NCT 1, 2, 3, 4
Chrysostom and NCT
Boettner and NCT
Plummer and NCT