My Father is at His work, and I too am working: The Sabbath was a day of rest. People were not supposed to work.
However, Jewish teachers agreed that God still worked on the Sabbath. God gives life through birth. God also takes life in death. God’s work does not stop.
Jesus used this idea to explain his actions. He said that, like his Father, he was also working. By speaking this way, Jesus compared himself with God.
The Jewish leaders understood what he meant. They objected because they believed he was claiming a special right that belongs only to God.