John 5:10-18 NIV
and so the Jewish leaders said to the man who had been healed, “It is the Sabbath; the law forbids you to carry your mat.” But he replied, “The man who made me well said to me, ‘Pick up your mat and walk.’ ” So they asked him, “Who is this fellow who told you to pick it up and walk?” The man who was healed had no idea who it was, for Jesus had slipped away into the crowd that was there. Later Jesus found him at the temple and said to him, “See, you are well again. Stop sinning or something worse may happen to you.” The man went away and told the Jewish leaders that it was Jesus who had made him well. So, because Jesus was doing these things on the Sabbath, the Jewish leaders began to persecute him. 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.