And to have power to heal sicknesses, and to cast out devils:

and to have power to heal diseases, and to cast out demons.

and to have authority to cast out devils:

And to have power to heal sicknesses, and to cast out demons.

with authority to expel the demons.

And give them the power of driving out evil spirits:

And he gave them authority to cure infirmities, and to cast out demons:

and with power to drive out demons.

To have power to heal - and to cast out devils - The business of a minister of Christ is,
1st. To preach the Gospel.
2dly. To be the physician of souls. And,
3dly. To wage war with the devil, and destroy his kingdom.

And to have power to heal sicknesses,.... All manner of corporeal diseases that attend men and women:
and to cast out devils; from such who were possessed with them: that is, he chose and appointed them to be his apostles, with a view of conferring such powers upon them hereafter; for as yet, they were not vested with them, nor sent out to exercise them; no, not till near twelve months after.