בֵּינִ֗י וּבֵין֙ בְּנֵ֣י יִשְׂרָאֵ֔ל א֥וֹת הִ֖וא לְעֹלָ֑ם כִּי־שֵׁ֣שֶׁת יָמִ֗ים עָשָׂ֤ה יְהוָה֙ אֶת־הַשָּׁמַ֣יִם וְאֶת־הָאָ֔רֶץ וּבַיּוֹם֙ הַשְּׁבִיעִ֔י שָׁבַ֖ת וַיִּנָּפַֽשׁ׃ (ס)
It is a sign between Me and the children of Israel for ever; for in six days the LORD made heaven and earth, and on the seventh day He ceased from work and rested.’
Siddur Edot HaMizrach
And the Children of Israel shall keep the Shabbat to observe the Shabbat in their generations – an eternal covenant. Between Me & the Children of Israel, it is a sign forever, that in six days G·d created the Heaven & the Earth & on the Seventh Day He ceased work & He Rested.