How do we know Christ's teachings are central to the Christian faith?

Wycliffe explains that Jesus Christ's life and teachings represent the heart of the Gospel, which informs all aspects of God's law. He emphasizes that Christ exemplified perfect humility and service, demonstrating that worldly leadership and authority should not overshadow the essence of Christian faith. By rejecting earthly kingship and instead choosing poverty and servitude, Christ established a model for all Christians, which should direct their faith and practice. This alignment with Christ's teachings is moreover supported by Pauline writings, indicating that the church's directives must reflect Christ’s character and mission.