Judges 18:10
When ye go, ye shall come unto a people secure, and to a large land: for God hath given it into your hands; a place where there is no want of any thing that is in the earth.
Cross-reference
Judges 18:10 recaps the description of Laish's security from 18:7, confirming the spies' report as the basis for their confident exhortation.
In Judges 18:27, the Danites fulfill the spies' report by attacking the unsuspecting people and taking the land — a direct narrative continuation.
Exodus 3:8 describes the Promised Land as 'good and spacious' and 'flowing with milk and honey' — matching the spacious abundance here.
Deuteronomy 8:7-9 explicitly says 'you will not lack anything' — the same promise of abundance as in this verse.
Ezekiel 20:6 calls the land 'flowing with milk and honey' and 'the glory of all lands' — reinforcing the land's excellence.
Ecclesiastes 6:2 contrasts this—God gives wealth and no lack, but without enjoyment, it is vanity, unlike the promised blessing in Laish.