John 5:17, 18

17 But Jesus answered them, My Father has worked [even] until now, [He has never ceased working; He is still working] and I, too, must be at [divine] work.

18 This made the Jews more determined than ever to kill Him [to do away with Him]; because He not only was breaking (weakening, violating) the Sabbath, but He actually was speaking of God as being [in a special sense] His own Father, making Himself equal [putting Himself on a level] with God.