They were acting hypocritically. This can be explained more clearly. Alternate translation: "Jesus knew that they did not really want to know what God wanted them to do" (See: [[rc://en/ta/man/translate/figs-explicit]])
Jesus rebukes the Jewish leaders because they were trying to trick him. This can be written as a statement. Alternate translation: "I know you are trying to make me say something wrong so you can accuse me." (See: [[rc://en/ta/man/translate/figs-rquestion]])