John Wesley on 1 Samuel 7:12

A stone - A rude unpolished stone, which was not prohibited by that law, Lev 26:1, there being no danger of worshipping such a stone, and this being set up only as a monument of the victory. Eben - ezer - That is, the stone of help. And this victory was gained in the very same place where the Israelites received their former fatal loss. Helped us - He hath begun to help us, though not compleatly to deliver us. By which wary expression, he exciteth both their thankfulness for their mercy received, and their holy fear and care to please and serve the Lord, that he might help and deliver them effectually.