John 5:10, 15, 18

When the Jewish leaders saw the man walking along carrying his sleeping mat, they objected and said, “What are you doing carrying that? Don’t you know it’s the Sabbath? It’s not lawful for you to carry things on the Sabbath!”

Then the man went to the Jewish leaders to inform them, “It was Jesus who healed me!”

This infuriated them and made them all the more eager to devise a plan to kill him. For not only did he break their Sabbath rules, but he also called God “my Father,” which made him equal to God.