We are made by God and for God, so we want God to be at the centre of all we do.
The Church is made up of people, normal people, working together and for each other. In 1 Corinthians this is called the body of Christ. And the head of the Body is Jesus Christ. He is the leader of His church, and we are led by God the Holy Spirit.
But God has also called people to lead. In the Bible they are called Elders (Acts 14:23).