In his defense Jesus said to them, “My Father is always at his work to this very day, and I too am working.” For this reason they tried all the more to kill him; not only was he breaking the Sabbath, but he was even calling God his own Father, making himself equal with God.
John 5:17-18//

Some will say that Jesus did not declare Himself the Son of God or that Jesus was only a good teacher or prophet. Here we see Jesus clearly identify Himself as the Son of God. Thus, He either IS the Son of God or He is a liar, making Him not a good teacher or prophet. I believe Jesus is who He said He was.