What does the Bible say about rest and the Sabbath?

In Exodus 31, God commands the children of Israel to keep the Sabbath as a sign of His covenant with them, emphasizing its holiness and the necessity of rest on this day. God created the heavens and the earth in six days and rested on the seventh, marking the Sabbath as a perpetual symbol of His sanctification of His people. The Sabbath serves as a reminder of the divine labor completed in creation and points to the rest that believers find in Christ, who fulfills the true essence of the Sabbath by His finished work on the cross.