Joshua 4:7

7 you will tell them that the water of the Jordan stopped flowing when the Lord's Covenant Box crossed the river. These stones will always remind the people of Israel of what happened here."

Joshua 4:7 In-Context

5 and he told them, "Go into the Jordan ahead of the Covenant Box of the Lord your God. Each one of you take a stone on your shoulder, one for each of the tribes of Israel.
6 These stones will remind the people of what the Lord has done. In the future, when your children ask what these stones mean to you,
7 you will tell them that the water of the Jordan stopped flowing when the Lord's Covenant Box crossed the river. These stones will always remind the people of Israel of what happened here."
8 The men followed Joshua's orders. As the Lord had commanded Joshua, they took twelve stones from the middle of the Jordan, one for each of the tribes of Israel, carried them to the camping place, and put them down there.
9 Joshua also set up twelve stones in the middle of the Jordan, where the priests carrying the Covenant Box had stood. (Those stones are still there.)
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.