How do we know Christ's miracles were genuine?

The miracles of Jesus, particularly the healing of the blind man in John 9, are documented with great detail and context, reinforcing their authenticity. The blind man's miraculous healing was not only public but also witnessed by many, ensuring that the miracle could not be easily dismissed by those who opposed Christ. Moreover, the nature of His miracles often fulfilled Old Testament prophecies concerning the Messiah, providing a theological and prophetic basis for believing in His divine authority. John 3:2 states, 'No man can do these miracles that thou doest, except God be with him,' suggesting that the miracles themselves are evidence of Jesus's divine commission.