R.J. Rushdoony’s ministry, which he has passed on to us at Chalcedon–and to all who wish to take it up–centered on the extension of Christ’s Kingdom: and in this, every Christian can take part. It’s work for all of us.
https://chalcedon.edu/magazine/christ-versus-satan
I think he saved the best quote for last: “Every Christian and his home is a part of this extension of Christ’s Kingdom.”