In Jesus’ time on earth, one of his main battles with the Pharisees revolved around the Sabbath, which was supposed to be a time of resting from working. The Jews were governed by the laws of the Torah, and there it explicitly states not to work on the Sabbath.
Jesus could have just gone along with what they wanted as a way of keeping the peace, but he didn’t. Jesus clearly had an equally strong conviction about how the Sabbath rest should be viewed. He wanted to show people that the Sabbath is important not so much because we are to rest from our work, but more so because we must rest in God. So what’s the importance of resting in God?