Then Samuel took a stone, and set it between Mizpeh and Shen, and called the name of it Ebenezer, saying, Hitherto hath the LORD helped us. – 1 Samuel 7:12

Mizpeh was the place of renewed covenant, and its name signifies the watch-tower. These people came together to renew their covenant with God, and wait for Him as upon a watch-tower. Whenever God’s people look back upon the past they should renew their covenant with God. Put your hand into the hand of Christ anew, thou saint of the Most High, and give thyself to Him again. Climb thy watch-tower and watch for the coming of thy Lord. See whether there be sin within thee, temptation without thee,-duty neglected or lethargy creeping over thee. Come to Mizpeh, the watch-tower; come to Mizpeh the place of the renewal of the covenant, and then set up your stone and say, “Hitherto, the Lord hath helped us.”

It seems to me that the spot where Samuel said “Ebenezer,” was exceedingly similar in many respects to the position occupied by us this day. I do not think the children of Israel could with heartier joy say “Ebenezer!” than we can. We have had many sins, a share of sorrows, and some defeats by reason of our own folly. I hope we have humbled ourselves before God, and lamented after Him, and desired to behold Him, and to dwell very near Him, and that our soul doth bless His name while we renew the covenant again this day, and while we come to the watch-tower and wait to hear what God the Lord will speak unto us. Come, then, let us sing together, “Hitherto the Lord hath helped us.” ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0500.cfm