““If you turn back your foot from the Sabbath, from doing your pleasure on my holy day, and call the Sabbath a delight and the holy day of the LORD honorable; if you honor it, not going your own ways, or seeking your own pleasure, or talking idly; then you shall take delight in the LORD, and I will make you ride on the heights of the earth; I will feed you with the heritage of Jacob your father, for the mouth of the LORD has spoken.”” (Isaiah 58:13–14 ESV)
“The Sabbath is a covenant sign that represents a lifestyle of devotion to the Lord, for it requires the practical reorganization of every week around him.”1 God’s call to His people is not one primarily of doing, but of dependance upon Him. This pursuit and dependance is manifested by observing the Sabbath rightly with delight, When this happens our delight is found in God. God’s grace and mercy is abundant in this passage to a religious, hard hearted, rebellious people; people like us.
1 Lane T. Dennis and Wayne Grudem, eds., The ESV Study Bible (Accordance electronic ed. Wheaton: Crossway Bibles, 2008), n.p. Note on Isaiah 56:2.