Gregory the Great, on Luke 10:5

“Into whatsoever house you enter, first say: Peace be to this house.”

“(ubi sup.) For now the very food which supports him is part of the wages of the labourer, as in this life the hire commences with the labour of preaching, which in the next is completed with the sight of truth. And here we must consider that two rewards are due to one work of ours, one on the journey, which supports us in labour, the other in our country, which recompenses us at the resurrection. Therefore the reward which we receive now ought so to work in us, that we the more vigorously strive to gain the succeeding reward. Every true preacher then ought not so to preach, that he may receive a reward at the present time, but so to receive a reward that he may have strength to preach. For whoever so preaches that here he may receive the reward of praise, or riches, deprives himself of an eternal reward.”

Imported from an open dataset — not yet checked against the printed edition.