that the name of our Lord Jesus{TR adds "Christ"} may be glorified in you, and you in him, according to the grace of our God and the Lord Jesus Christ.
"Here strict syntax requires, since there is only one article with theou [God] and kuriou [lord] that one person be meant, Jesus Christ, as is certainly true in Titus 2:13; 2 Peter 1:1 . . . This otherwise conclusive syntactical argument . . . is weakened a bit by the fact that Kurios is often employed as a proper name without the article, a thing not true of soter [savior] in Titus 2:13 and 2 Peter 1:1. So in Ephesians 5:5 en tei basileiai tou Christou kai theou the natural meaning is in the Kingdom of Christ and God regarded as one, but here again theos, like Kurios, often occurs as a proper name without the article. So it has to be admitted that here Paul may mean ’according to the grace of our God and the Lord Jesus Christ,’ though he may also mean ’according to the grace of our God and Lord, Jesus Christ.’" [Note: A. T. Robertson, Word Pictures in the New Testament, 4:46.] 