And whatsoever ye do in word or deed, do all in the name of the Lord Jesus, giving thanks to God and the Father by him.
Literally, 'And every thing whatsoever ye do ... do all,' etc.; words as well as deeds.
In the name of the Lord Jesus - as disciples called by His name as His; seeking so to act as to gain His approval (Romans 14:8; 1 Corinthians 10:31; 2 Corinthians 5:15; 1 Peter 4:11: cf. Colossians 3:18, and Colossians 3:11, end). 'In that spiritual element which His name betokens' (Ellicott).
God and the Father. A B C 'Aleph (') omit "and," which crept in from Ephesians 5:20.
By (through) him - as the channel of His grace to us, and of our thanksgiving to Him (John 14:6, end).