Deuteronomy 12:8

Himself. Some confine this to the sacrifices, which each person might offer, where he thought proper, till the ark was fixed at Silo. But many other parts of the ceremonial law, seem not to have been in force till the Hebrews crossed the Jordan, Amos v. 25. Circumcision was omitted, as well as most of the festivals. Several laws were, however, designed for the people during their sojournment, such as those which regard the order of judgment, the cleanness of the camp, the purification of women, and of those who had touched a dead body, &c., Exodus xviii. 25., Numbers v. 2., and Leviticus xv. 31. It was not left to their option to observe or to neglect the sabbath, (Numbers xv. 32,) the loaves of proposition, or the perpetual fire, &c., Numbers iv. 7, 13. (Calmet)