Deuteronomy 25:15
But thou shalt have a perfect and just weight, a perfect and just measure shalt thou have: that thy days may be lengthened in the land which the Lord thy God giveth thee.
Cross-references
Deuteronomy 4:40 ties obedience to prolonged days in the land — the same promise attached to honest weights here.
Deuteronomy 5:16 attaches the same 'long days in the land' promise to honoring parents — a parallel reward structure.
Deuteronomy 5:33 promises long life and well-being for walking in God's ways — echoed in the weight law's blessing.
In Deuteronomy 6:18, the same conditional promise of well-being and possession of the land ties to doing what is right, reinforcing the link between honest weights and covenant obedience.
In Deuteronomy 11:9, the promise of prolonged days in the land motivates obedience to all commandments, echoing the specific reward for honest dealing here.
In Deuteronomy 17:20, the king's obedience is rewarded with prolonged days in his kingdom, mirroring the long-life promise for honest weights.
In Exodus 20:12, the promise 'that your days may be long in the land' attaches to honoring parents, showing a common covenant reward formula.
In Leviticus 19:35, the command for honest weights and measures is given without the promise, directly paralleling the ethical injunction here.