How do we know the authority of Peter is true?

Peter's authority to heal, as demonstrated in the account of Aeneas in Acts 9, is clearly derived from his relationship with Jesus Christ and the empowerment of the Holy Spirit. When Peter declared, 'Aeneas, Jesus Christ makes you whole,' it was not merely a display of human ability but a testament to the apostolic authority granted through divine means. Such miracles were essential in establishing the early church's credibility, serving as signs that affirmed the truth of the gospel message they preached, and testifying to the legitimacy of their calling from Christ.