Isaiah 30:15 This is what the Sovereign Lord, the Holy One of Israel, says: “Only in returning to me and resting in me will you be saved.”

“To set a part one day a week for freedom …a day of detachment from the profane, a day of independence from obligations, a day on which we stop worshiping the idol of screen time, a day of truce in our struggles with our fellow man -is there any institution that holds out a greater hope for man's progress than the Sabbath?”  
Sabbath by Abraham Joshua Herschel P.28