John 10:25

‘Jesus answered them, “I did tell you, but you do not believe. The works that I do in my Father's name, these bear witness of me'.

His reply is that they had neither listened to what He had been saying, nor rightly interpreted His amazing acts of power. All He had said and done had revealed Him as God's Messiah (see Matthew 11:2). But they had refused to understand His words and His deeds because He was not the kind of Messiah they were looking for. They would possibly have followed Him if He had taken up the sword, but not when He healed men and opened the eyes of the blind, not when He called men to receive life and become transformed. Yet these were the works that He had come to do. They declared what kind of Messiah He was, as based on Isaiah 61:1. (While this did not specifically refer to the Messiah, Jesus happily applied to Himself all references to the coming of a future figure who would bring about God's purposes as part of the Messianic expectations, for all pointed to Him).