The story of Jesus clearing the temple is also told in Matthew 21 and Mark 11. In all three accounts, Jesus is concerned about the integrity of the temple – that the merchants had turned a house of prayer into a den of thieves. This concern is also a fulfillment of prophecy (Psalm 69:9). Under the new covenant, both our individual bodies and the gathered church are temples of God. God still desires for his temple to be a house of prayer. When pressed about what gave him the authority to clear the temple, Jesus points ahead to his own death and resurrection.
Passage: John 2:13-25