See in Reader
405 B
405 B
in word or in deed
"in speaking or in acting"
in the name of the Lord Jesus
"to honor the Lord Jesus" or "so that others will know you belong to the Lord Jesus and will think well of him" or "as if the Lord Jesus himself were doing it"
through him
Possible meanings are 1) because he has done great deeds or 2) because he has made it possible for people to speak to God and so give him thanks.