William Still on pastors as men of the Word

It is to feed sheep on…truth that men are called to churches and congregations, whatever they may think they are called to do. If you think that you are called to keep a largely worldly organization, miscalled a church, going, with infinitesimal doses of innocuous sub-Christian drugs or stimulants, then the only help I can give you is to advise you to give up the hope of ministry and go and be a street scavenger; a far healthier and more godly job, keeping the streets tidy, than cluttering the church with a lot of worldly claptrap in the delusion that you are doing a job for God. The pastor is called to feed the sheep, even if the sheep do not want to be fed. He is certainly not to become an entertainer of goats. Let goats entertain goats, and let them do it out in goatland. You will certainly not turn goats into sheep by pandering to their goatishness. Do we really believe that the Word of God, by his Spirit, changes, as well as maddens men? If we do, to be evangelists and pastors, feeders of sheep, we must be men of the Word of God.
— William Still, Work of the Pastor

Michael Horton on the church and Christ's kingdom

The church is not simply another voluntary society, like the Boy Scouts or the Sierra Club. It’s an embassy of Christ’s Kingdom….unlike the rulers of this age, Jesus doesn’t ask us to shed our blood for his empire; he instead gave his own life for his realm. Then he was raised in glory as the beginning of the new creation, and now he is gathering coheirs into his kingdom who belong to each other because, together, they belong to him. The visible church is where you will find Christ’s kingdom on earth, and to disregard the kingdom is to disregard the king.
— Michael Horton, Church Membership: How the World Knows Who Represents Jesus by Jonathan Leeman (Foreword, 14-15)