John Gill Commentary Luke 9

Then he called his twelve disciples together
The Persic version reads, "all his twelve disciples", the other nine, besides the three that were with him, when he raised Jairus's daughter, recorded in the foregoing chapter; the Vulgate Latin, Arabic, and Ethiopic versions read, "the twelve apostles", for so Christ had named his disciples; (See Gill on Matthew 6:13). The Syriac version only reads, "his own twelve"; and this is agreeably to Luke's way of speaking; see (Luke 8:1) (9:12) .

And gave them power and authority over all devils ;
that is, all kinds of devils, particularly to cast them out of the bodies of men, possessed by them:

and to cure diseases ;
of all sorts.

And he sent them to preach the kingdom of God
The Gospel, which gives an account of the kingdom of the Messiah; of his kingly office and power;

of his church, which is his kingdom, and of the government of it, by the ministration of the word, and the administration of ordinances;

of the kingdom of grace in the hearts of Christ's subjects, and the nature of it;

and of the kingdom of glory, and what is the saints' meetness for it, and right unto it:

and to heal the sick ;
of every disease of body, and thereby confirm their mission and commission from Christ, to preach the Gospel; and recommend it to men.

And he said unto them, take nothing for your journey
Throughout the towns and cities of Judea, where they were sent to preach the Gospel:

neither staves ,
The Vulgate Latin, and all the Oriental versions, read in the singular number, "neither staff, rod, or club"; and so it was in one of Beza's ancient copies, but in all the rest in the plural, as in Matthew; which last must be the true reading, since one staff was allowed, according as in (Mark 6:8) though more than one were forbidden:

nor scrip ;
or bag to put provision in; (See Gill on Matthew 10:10)

Neither bread, neither money ;
gold, silver, or brass, to buy bread with; because they were to have it, wherever they came, given them, as their due, and the reward of their labour;

neither have two coats apiece ;
the word "apiece" is left out in one copy, nor is it expressed in the Vulgate Latin and the eastern versions, which read as in (Matthew 10:10) though the word does aptly and clearly express the sense of the prohibition, which was not that they should not have two coats among them, but not two apiece; or each man should not have two, or have change of raiment; (See Gill on Matthew 10:10)

And whatsoever house you enter into
In any town, or city, they should come to in their journey through Judea, and should enter into for the sake of lodging, during their stay:

there abide ;
do not shift quarters, or move from house to house:

and thence depart ;
the house you come into first, go out of last, when you leave the town or city. The Vulgate Latin and Persic versions read, and thence do not depart: and so Beza says it is read in a certain copy, but then the sense is the same, as the Ethiopic version renders it, "do not go out from thence, until you depart"; that is, do not leave the house, till you depart out of the town or city; agreeably to which is the Arabic version, "remain in it until the time of your going out"; (See Gill on Matthew 10:11).

And whosoever will not receive you
to their houses:

when you go out of the city ;
where lodging and entertainment are refused you;

shake off the very dust from your feet, for a testimony against them ;
(See Gill on Matthew 10:14) (See Gill on Mark 6:11)