Always,
Obviously, the aforementioned belief is not NEEDED to be shomer shabbos, as I clarified in my last post.
To the best of my knowledge, the Torah doesn’t say that we rest in Shmita because Hashem rested on the seventh day. [Although this may be explained in other places, it is not the explicit reason given in Torah]. Whereas regarding weekly Shabbos this reason is stated explicitly in Torah.
[Maybe this is actually proof that ששת ימי בראשית are 24-hour days. If not, the Torah could have said regarding Shmita, “work for six years and rest in the seventh, because Hashem created the world in six years and rested in the seventh.”
After all, days, months, and years are just תקופות and shouldn’t be taken literally.
(This is obviously not a strong proof because we can’t dictate what the Torah “should have said,” but I’m just turning it back on you.)]
מנחם שמו