The Lord Repeats the Commandment to Keep the Sabbath Day Holy  

Doctrine and Covenants 68:29

29 And the inhabitants of Zion shall also observe the Sabbath day to keep it holy.

Elder Mark E. Petersen of the Quorum of the Twelve Apostles said:

“One of the most glaring of our inconsistencies is our attitude toward the Sabbath day. It is a sacred day. It is holy, and we should not trifle with it.”

(“The Sabbath Day,” Ensign, May 1975, 47.)