Theophylact of Ohrid
Catena Aurea · Lukasevangelium 9
Then he called his twelve disciples together, and gave them power and authority over all devils, and to cure diseases. And he sent them to preach the kingdom of God, and to heal the sick. And he said unto them, Take nothing for your journey, neither staves, nor scrip, neither bread, neither money; neither have two coats apiece. And whatsoever house ye enter into, there abide, and thence depart. And whosoever will not receive you, when ye go out of that city, shake off the very dust from your feet for a testimony against them. And they departed, and went through the towns, preaching the Gospel, and healing every where.
Some also understand by the Apostles not carrying scrip, nor staff, nor two coats, that they must not lay up treasures, (which a scrip implies, collecting many things,) nor be angry and of a quarrelsome spirit, (which the staff signifies,) nor be false and of a double heart, (which is meant by the two coats.)