Shabbath שבת – Sabbath
This is why שבת Shabbath, Saturday is holy, “if we make it holy;” in other words, שבת Shabbath is our own physical matter.
“Remember the Sabbath day, to keep it holy.” – Exodus 20: 8
“[Remember that] on [Malkuth] the seventh day Elohim [Binah] ended the work which they had made; and Elohim rested on [Malkuth] the seventh day from all the work which they had made. And Elohim blessed [Malkuth] the seventh day, and sanctified it: because that on it he had rested from all their work which Elohim created and made.” – Genesis 2: 2, 3