I gave them my statutes— That is, says Bishop Warburton, he gave them the moral law of the decalogue, in which there was one positive institution, and no more; but this one absolutely necessary to preserve them a select people unmixed with the nations. By the word שׁבתותי shabbetotai, my sabbaths, says Houbigant, are understood those other solemnities, which, no less than the sabbaths strictly speaking, were a sign whereby God was known to be the God of Israel.
Related Commentaries of Ezekiel 20:11
Ezekiel 20:11-12
11 And I gave them my statutes, and shewedb them my judgments, which if a man do, he shall even live in them.
12 Moreover also I gave them my sabbaths, to be a sign between me and them, that they might know that I am the LORD that sanctify them.