Psalm 71:17–18: Declaring God to the Next Generation
The psalmist does not retire from witness when he grows old. He asks God to keep him going for one reason: so the next generation can still hear what God has done.
Deuteronomy 6:4–9: Wholehearted Love, Daily Teaching
Deuteronomy 6:4–9 ties the discipling of children to the older generation's own wholehearted love for Yahweh, carried into ordinary speech and practice at home. The command calls for faithful, repeated teaching while outcomes rest with God's grace.