Leviticus 23:43
That your generations may know that I made the children of Israel to dwell in booths, when I brought them out of the land of Egypt: I am the Lord your God.
Cross-reference
Exodus 13:14 instructs parents to explain the Exodus to their children — the same teach-the-next-generation purpose given here for the booth festival.
Deuteronomy 31:10-13 commands reading the law at this same feast so children learn, echoing the generational teaching purpose here.
Psalm 78:6 directly states 'that the next generation might know', matching the exact purpose clause here to make generations know.
Exodus 20:2 begins the Decalogue with 'I am the LORD your God who brought you out of Egypt', the same identity and redemption recalled here.
Zechariah 14:16 prophesies all nations keeping this same Feast of Tabernacles in the future, showing its eschatological fulfillment.
Psalm 78:5 speaks of God commanding fathers to teach His law to children, aligning with the purpose here to instruct future generations.