"If the Lord does not build the house, in vain do its builders labour" (v. 1).
"It is the Lord's blessing that brings wealth, and no effort can substitute for it" (Prv 10:22).
"They placed themselves under God's protection, imploring his assistance, without putting their trust in some work they accomplished. And for them, God's protection was a fortified city, because they knew that without God's help they were powerless; and their humility made them say, with the Psalmist: 'If the Lord does not watch over the city, in vain does the watchman keep vigil'" (Recueil Ascétique, Abbey of Bellefontaine 1976, pp. 74-75).
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