God speaks of obeying his instructions about the Sabbath as keeping the Sabbath. AT: "must obey Yahweh's instructions about the Sabbath" (See: [[rc://en/ta/man/translate/figs-metaphor]])
"They and all the generations of their descendants must observe it." See how you translated "throughout their people's generations" in [Exodus 12:42](../12/12.md).