Haggai 1:6 says the people earned wages only to put them where?

Answer: Into a bag with holes

Neglecting God's house, they planted much but harvested little and earned wages "to put into a bag pierced through."

“Now this is what the LORD of Hosts says: “Consider carefully your ways. You have planted much but harvested little. You eat but never have enough. You drink but never have your fill. You put on clothes but never get warm. You earn wages to put into a bag pierced through.””— Haggai 1:5-6 (BSB)