Keeping the Sabbath Day holy is a commandment with a promise. The Doctrine and Covenants reads, “But remember that on this, the Lord’s day, thou shalt offer thine oblations and thy sacraments unto the Most High, confessing thy sins unto thy brethren, and before the Lord. … Verily I say, that inasmuch as ye do this, the fulness of the earth is yours, the beasts of the field and the fowls of the air, and that which climbeth upon the trees and walketh upon the earth.”(Doctrine and Covenants 59:12, 16)