Genesis 26:29
That thou wilt do us no hurt, as we have not touched thee, and as we have done unto thee nothing but good, and have sent thee away in peace: thou art now the blessed of the Lord.
Cross-reference
In Genesis 26:11, Abimelech protects Isaac from harm — here he asks Isaac for the same reciprocal protection.
In Genesis 26:12, the LORD blesses Isaac with a hundredfold harvest — the concrete prosperity Abimelech now acknowledges.
In Genesis 26:14, the Philistines envy Isaac's prosperity — the very blessing Abimelech now acknowledges.
In Genesis 26:15, Philistines stop Isaac's wells — in contrast to Abimelech now honoring Isaac as blessed.
In Genesis 21:22, Abimelech tells Abraham 'God is with you' — the same king's house now says the same to his son Isaac.
In Genesis 22:17, God's blessing to Abraham of multiplied offspring echoes as Isaac is recognized as blessed by the LORD.
In Genesis 12:2, God promises to bless Abraham — Abimelech recognizing Isaac as blessed shows that promise unfolding.
In Genesis 24:31, Laban uses the same phrase for Abraham's servant, showing recognition of God's blessing on Abraham's line.