Matthew 10:7 - Ellicott's Commentary On The Whole Bible

Preach — i.e., “proclaim — act as heralds,” as elsewhere. The repetition of the self-same words as had described first the Baptist’s teaching and then our Lord’s, seems to suggest that this was actually a formula of proclamation. The two envoys of the King were to enter into town or village, and there, standing in the gate, to announce that His kingdom had come near, and then, when this had drawn crowds to listen, to call men to the repentance without which they could not enter it.