The following is an article written by John Piper on The Marks of a Spiritual Leader:
I define spiritual leadership as knowing where God wants people to be and taking the initiative to use God’s methods to get them there in reliance on God’s power. The answer to where God wants people to be is in a spiritual condition and in a lifestyle that display his glory and honor his name. Therefore, the goal of spiritual leadership is that people come to know God and to glorify him in all that they do. Spiritual leadership is aimed not so much at directing people as it is at changing people. If we would be the kind of leaders we ought to be, we must make it our aim to develop persons rather than dictate plans. You can get people to do what you want, but if they don’t change in their heart you have not led them spiritually. You have not taken them to where God wants them to be.