Ex 20:8-11 no ceremony identified with Sabbath
Gen 2:1-3 - no ceremony identified with Sabbath. No any animal sacrifice required by Adam in Gen 2:1-3.
Not quite sure why it matters, but the Law did command sacrifices to be offered on the Sabbath:
Num
28:9 “‘On the Sabbath day, you must offer two unblemished lambs a year old, and two-tenths of an ephah of finely ground flour as a grain offering, mixed with olive oil, along with its drink offering.
28:10 This is the burnt offering for every Sabbath, besides the continual burnt offering and its drink offering.
Lev 26:2 ‘You shall keep My sabbaths and reverence My sanctuary; I am the LORD.
Note on 26:2 - appears to be a case of Hebrew parallelism were "You shall keep" // "you shall revere" and "My Sabbaths" // "My sanctuary" so sabbath and tabernacle are linked in the passage.
We also know some of the Temple liturgy leading up to Sabbath specific sacrifices and liturgy (
m. Tan 4.3,
b. Ned 78b) and at least one Psalm used as liturgy on the Sabbath (
Psalm 92). It might also be worth speculating that Ps 93 was also a Sabbath Psalm. Based on these, we probably have a good idea of the general liturgial theme leading up to Sabbath. During the week the various days of creation were recited liturgically in the Tabernacle/Temple and Sabbath itself liturgically celebrated/commerated the enthronement of God in his Temple during which there were specific offerings required..
So there absolutely was liturgy, ceremony, ritual and sacrifice associated with the Sabbath. In fact, in at least as early as the 2nd Temple period, there was internal debate over how to prioritize laws since some temple specific laws could be seen as conflicting with sabbath specific laws, so which ones were to be prioritized? The Rabbis would argue that when requirements conflicted, temple laws override sabbath laws, as they were more specici/strict, and they reasoned this by using an exegetical rule (kal va’homer) to derive if from the scriptures (
The Sabbath Galilean Incident). The priests had Sabbath specific duties that overrode other more general Sabbath specific requirements in the Law -and more generally, preservation of life overrode all other laws (see also
t. Sab 16:13).
In any case, it's not true that there was no ceremony identified or associated with the Sabbath.