Joshua 4:7
Then ye shall answer them, That the waters of Jordan were cut off before the ark of the covenant of the Lord; when it passed over Jordan, the waters of Jordan were cut off: and these stones shall be for a memorial unto the children of Israel for ever.
Cross-references
Joshua 4:6 introduces the children's question; verse 7 provides the answer about the waters being cut off. They are directly linked.
Joshua 3:13-16 describes the crossing event that Joshua 4:7 references as the reason for the memorial stones.
Exodus 12:26 has the same pattern: when children ask, explain the Passover — both memorials with a teaching tradition for future generations.
Exodus 39:7 describes 'stones of remembrance' on the ephod — directly parallels the stones as a memorial, both physical stones with a remembrance function.
Deuteronomy 4:9 commands teaching children to remember God's works—the memorial in Joshua 4:7 directly serves that purpose.
Deuteronomy 6:20 anticipates children asking about God's commands; Joshua 4:7 provides a memorial to prompt such questions.
Esther 9:28 institutes Purim as a perpetual memorial, closely paralleling the enduring memorial of the stones in Joshua 4:7.
Psalm 78:4 declares the duty to tell children of God's wonders—the stones in Joshua 4:7 are a tangible means to that end.
Exodus 12:14 institutes a memorial feast (Passover) for future generations, similar to the perpetual memorial of stones here.
Joel 1:3 also commands passing a story to children and grandchildren — a parallel to the memorial instruction here.
In 1 Corinthians 11:24, 'do this in remembrance of me' mirrors the memorial purpose of the stones — both commanded memorials of divine deliverance.