Adam Clarke on 1 Samuel 7:14

The cities which the Philistines had taken - We are not informed of the particulars of these reprisals, but we may rest assured all this was not done in one day: perhaps the retaking of the cities was by slow degrees, through the space of several years.

There was peace between Israel and the Amorites - That is, all the remaining Canaanites kept quiet, and did not attempt to molest the Israelites, when they found the Philistines, the most powerful of the ancient inhabitants of the land, broken and subdued before them.