Bede the Venerable — as excerpted in the Catena Aurea on Mark 6:6-13

“(ubi sup.) Again, allegorically; under the figure of a scrip is pointed out the burdens of this world, by bread is meant temporal delights, by money in the purse, the hiding of wisdom; because he who receives the office of a doctor, should neither be weighed down by the burden of worldly affairs, nor be made soft by carnal desires, nor hide the talent of the word committed to him under the ease of an inactive body. It goes on, And he said unto them, In what place soever ye enter into an house, there abide till ye depart from that place. Where He gives a general precept of constancy, that they should look to what is due to the tie of hospitality, adding, that it is inconsistent with the preaching of the kingdom of heaven to run about from house to house.”