Gregory the Great

By this servant then who is sent by the master of the family to bid to supper, the order of preachers is signified. But it is often the case that a powerful person has a despised servant, and when his Lord orders any thing through him, the servant speaking is not despised, because respect for the master who sends him is still kept up in the heart. Our Lord then offers what he ought to be asked for, not ask others to receive. He wishes to give what could scarcely be hoped for; yet all begin at once to make excuse, for it follows, And they all began with one consent to make excuse. Behold a rich man invites, and the poor hasten to come. We are invited to the banquet of God, and we make excuse.