The phrase "a thousand days better in your house" is a paraphrase of Psalm 84:10, which states, "Better is one day in your courts than a thousand elsewhere." This verse, found in the Bible, expresses the idea that spending time in God's presence, even for a short time, is far more valuable than a long period spent elsewhere, even in a place perceived as desirable or luxurious.
The Psalm, written by the Sons of Korah, speaks of their longing for the Temple in Jerusalem, a place symbolic of God's presence. The "courts" or "house of my God" refers to this sacred space where people could experience God's nearness. The psalmist's desire to be a doorkeeper in God's house, rather than dwelling in the tents of the wicked, further emphasizes this preference for God's presence over worldly comforts