Acts 6:4

But we will give ourselves continually to prayer, and to the ministry of the word.

Widows were not being cared for properly in the new Jerusalem church. The apostles had invited the Christians to choose good and godly men to oversee that compassionate work. “But …” the Twelve weren’t going to do that particular job. Not that caring for widows wasn’t important in the grand scheme of things. But they had been called to another task. And they knew that to be faithful to their calling, they should continue doing what they were doing, without getting sidetracked in other things, even good things.