Since it is our duty to set our affections upon heavenly things, it is our duty to mortify our members which are upon the earth, and which naturally incline us to the things of the world: “Mortify them, that is, subdue the vicious habits of mind which prevailed in your Gentile state. Kill them, suppress them, as you do weeds or vermin which spread and destroy all about them, or as you kill an enemy who fights against you and wounds you.” - Matthew Henry