Deuteronomy 8:12

Beware that thou forget not the Lord thy God, in not keeping his commandments, and his judgments, and his statutes, which I command thee this day: lest when thou hast eaten and art full, and hast built goodly houses, and dwelt therein; . . . then thine heart be lifted up, and thou forget the Lord thy God: . . . for it is he that giveth thee power to get wealth.

Except the Lord build the house, they labour in vain that build it: except the Lord keep the city, the watchman waketh but in vain.