The Apostolic Church views the Scriptures as the supreme authority and understands them to be the inerrant Word of God. The soteriology of the Apostolic Church is neither uniformly Reformed nor Arminian. Emphasis is placed upon the penal substitutionary atonement and the Reformation understanding of justification by grace alone. The Church has taught both unconditional election and the possibility of grace, suggesting a position closer to that of Lutheran theology. Ecclesiology has taken a prominent place in the theology of the movement. The Church is defined as the Body of Christ and the headship of Christ is given prominence. Christ is seen to express his headship through the of apostles, prophets, evangelists, pastors and teachers.