Adam Clarke

That ye would walk worthy of God - That they should, in every respect, act up to their high calling, that it would not be a reproach to the God of holiness to acknowledge them as his sons and daughters. See the notes on Eph 4:1; Phi 1:27 (note); and Col 1:10 (note). His Kingdom and glory - His Church here, for that is the kingdom of God among men; and his glory hereafter, for that is the state to which the dispensations of grace in his Church lead. The words, how ever, may be a hendiadys, and signify his glorious kingdom.