Jesus combines quotes from and in , which is a parallel verse to this verse and . Both are from expositions on the nature of the Temple. The quote from Isaiah comes from a section about how all who obey God's will, Jewish or not, are to be allowed into the Temple so they can pray and therefore converse with God. The passage in Jeremiah is from a chapter on the futility of worship if one does not obey God's will. People making money off of worshipping God right inside God's own Temple seems to Jesus to be a corruption of God's intention. "Den of thieves" might be a reference to extortionary pricing for the doves and money. The people are amazed by him and his teaching, which drives the chief priests to plot to kill him. Jesus and his group however leave the city at the end of the day.