Theophylact of Ohrid — as excerpted in the Catena Aurea on Luke 10:5-12

“Although they be few and poor, ask for nothing more; He also tells them to work miracles, and their word shall draw men to their preaching. Hence he adds, And heal the sick that are therein, and say to them, The kingdom of God is come nigh unto you. For if you first heal and then teach, the word will prosper, and men believe that the kingdom of God is come nigh. For they would not be cured unless by the working of some divine power. But also when they are healed in their soul, the kingdom of God comes nigh unto them, for it is far off from him over whom sin has the dominion.”