Gregory the Great

(Hom. in Ev. xix, 1.) Or; The Master of the household, that is, our Maker, has a vineyard, that is, the Church universal, which has borne so many stocks, as many saints as it has put forth from righteous Abel to the very last saint who shall be born in the end of the world. To instruct this His people as for the dressing of a vineyard, the Lord has never ceased to send out His labourers; first by the Patriarchs, next by the teachers of the Law, then by the Prophets, and at the last by the Apostles, He has toiled in the cultivation of His vineyard; though every man, in whatsoever measure or degree he has joined good action with right faith, has been a labourer in the vineyard.