Matthew 21:33

'The householder is God, who on account of His tender love is called a man. The vineyard is the people of the Jews planted by God in the land of promise. The hedge is the Law, which hindered them from mingling with the nations, the winepress the altar of sacrifice, the tower the Temple, the husband-men, the teachers of the people, i.e. the Pharisees and scribes. And the householder (God) departed, when He no longer spoke to them in the pillar of cloud, or perhaps the departure of God is His longsuffering; for God seems to sleep and to be in a far country, when He is longsuffering, and does not call men to account for their sins the moment that they are committed '(Theophylact). Tower] i.e. a watchtower for the keepers who were set to guard the vineyard when the grapes were nearly ripe (Job 27:18; Song of Solomon 1:6; Isaiah 1:8).