A.T. Robertson Commentary Acts 6:4

"But we will continue stedfastly in prayer, and in the ministry of the word." — Acts 6:4 (ASV)

But we (εμεις δε). In contrast to the work given the seven.

The ministry of the word (τη διακονια του λογου). The same word διακονια employed in verse 1, but here about preaching as the special ministry with which the apostles were concerned. For "continue steadfastly" (προσκαρτερησομεν) see on 2:42.