Jesus shows His divinity (godness) in this passage in His foreknowledge of what will happen as the disciples obey His orders for procuring the donkey and colt, but also in His use of the prophets to show that He is God’s Son and is fulfilling these very passages. The people welcome Him into Jerusalem as their king – but they are expecting a king who will deliver them from the Romans, not from their sins.
The cleansing of the temple is an act that on the one hand shows His physical power and prowess (have you ever tried to separate a Jew from his money?). On the other hand it is an act of judgment against the religious officials. They have NOT been fulfilling their duties toward God and have in fact turned His house of prayer into a meeting place for thieves.