Exodus 34:21-24

"Six days shalt thou work, but on the seventh day thou shalt rest. And thou shalt observe the feast of weeks (Pentecost), even of the first-fruits of wheat harvest, and the feast of ingathering at the year' s end. Three times in the year shall all thy males appear before the Lord Jehovah, the God of Israel. For I will cast out nations before thee, and enlarge thy borders: neither shall any man desire thy land, when thou goest up to appear before Jehovah thy God three times in the year."

"Six days thou shall work, but on the seventh day thou shalt rest ..." This is Commandment IV. Those who imagine another document called the "ritual decalogue," to repeat the confession of the man who invented it, have simply fallen for "a foolish notion, due to insufficient knowledge!"[20]

"In plowing time, and in harvest ..." This denied any exemptions that might have been claimed to avoid keeping the sabbath in times of unusual urgency for work, such as "seedtime and harvest."

The Feast of Weeks (Pentecost), and that of Tabernacles, were also enjoined in these verses. That the Passover was also included is specifically stated in Exodus 34:23: "Three times in the year!"

"The feast of ingathering at the year's end (Tabernacles) ..." The word here rendered "year's end" is, in the Hebrew text, "the year's revolution," a scientific reference to the circling of the earth around the sun in its annual orbit, producing the years![21]