Isaiah 58:13-14

If you turn back your foot from Shabbat, from doing your pleasure on My holy day, and call Shabbat a delight, the holy day of ADONAI honorable, If you honor it, not going your own ways, not seeking your own pleasure, nor speaking your usual speech, then You will delight yourself in ADONAI, and I will let you ride over the heights of the earth, I will feed you with the heritage of your father Jacob.” For the mouth of ADONAI has spoken.