How do we know the authority of the apostles like Peter is true?

Peter, as an apostle, possessed a unique authority granted by Christ. His exhortations were not simply suggestions; they were authoritative instructions grounded in the divine revelation of God. The New Testament reflects this authority, preserved in the Scriptures, which are 'given by inspiration of God' (2 Timothy 3:16). Apostolic authority is validated through the miracles and teachings that aligned with God's sovereign purpose, serving as a guide for believers. The tradition and history within the church also affirm the role of apostles in establishing doctrine and moral conduct for the faith.