It is the duty of every doctrinally sound Christian to use the resources God has given them to advance the gospel message in its purity and simplicity. They should strive to soberly evaluate the resources God has given them. Whether their home might be used for a home Bible study or for church planting. Whether they have the time and skill to assist some necessary function at the church. This also means that, at an early point in their Christian journey, they should strive to identify their spiritual gifts. In Romans 12:1, Paul calls believers to offer themselves as a complete sacrifice, identifying every gift, every resource, in terms of how it might advance the gospel.
Contrary to the popular teaching of the church today, however, Paul does not address this process in terms of "discovering their leadership potential," but to discover their serventhood potential!
Between Paul's exhortation to offer ourselves as a living sacrifice to God (Romans 12:1), and is call that we identify our spiritual gift (Romans 12:4), are his instructions on how to offer oneself a holy and living sacrifice. One is to use their mind (verse 2) to soberly evaluate their gifts, and their resources in view of the church, country, and culture in which they live. A billionaire living in a third world country does not need to wait for some magical "call" that he has the gift of giving. According to Paul, he determines his calling in the church by a sober assessment of the gifts and resources that God has given him. If the church is teaching sound doctrine, he ought to be able to figure out that this is a major contribution he can make to the church. Spirituality is not being driven by a "liver quiver," but by the rational mind. It was the Greeks who viewed an "out of the mind" experience as "spiritual." ("pneumatikon", 1 Cor. 12:1). Throughout his ministry, Paul labored to disabuse the Hellenistic church of this notion of spirituality.
After calling men to offer themselves as a living sacrifice, he offers a second warning before urging them to use their spiritual gifts. In verse 4, he warns each of them "to think not more highly of himself than he ought." The fact that someone has a grand and beautiful house certainly means they would make a marvelous host for a Bible study or house church. But it doesn't mean they would be the most gifted teacher! True servant humility is "to think not more highly of himself than he ought, but to think soberly." This means that he should seek the most equipped teacher available to teach the home Bible study. (Of course, this also includes developing the spiritual gifts of others.) But the fact that God has given you the nicest house in the church does not mean he desires for you to be the principal teacher.
Certainly, this is his right, as he is the owner of the home. Peter acknowledged that the possessions of Ananias and Sapphira were theirs to do with as they saw fit (Acts 5:4). Property rights are honored in Scripture.
But one seeking to be great in God's kingdom should not see their possessions, their wealth, their home, or other leveraged resources, as a means for exalting their position and visibility in the church, or for fueling their sense of importance as a teacher or 'leader,' but for leveraging the advance of the gospel in the most efficient manner. "From the days of John the Baptist until now the kingdom of God suffers violence, and the violent take it by force. . . . Now there was also a dispute among them, as to which of them should be considered the greatest. And he said to them, 'The kings and the Gentiles exercise lordship over them, and those who exercise authority are called 'benefactors.' But not so among you; no the contrary, he who is greatest among you, let him be as the younger, and he who governs as he who serves." (Matthew 11:12; Luke 22:24-27).
The term "service" carries with it what should be at the very root of assessing their gifts "soberly," the term "servant."
In all things, and by all means that are godly, it is the duty of Christians who apprehend with clarity the message of the gospel, to use, with all humility and sober evaluation of themselves, whatever spiritual gifts, positions of authority, finances, and other resources available to them, to defend and advance the gospel of Jesus Christ in its purity and power (Philippians 1:7, 16-17).
