וְגַ֤ם אֶת־שַׁבְּתוֹתַי֙ נָתַ֣תִּי לָהֶ֔ם לִהְי֣וֹת לְא֔וֹת בֵּינִ֖י וּבֵֽינֵיהֶ֑ם לָדַ֕עַת כִּ֛י אֲנִ֥י יְהוָ֖ה מְקַדְּשָֽׁם׃
Ibinigay ko rin sa kanila ang aking mga Sabbath upang maging tanda sa pagitan ko at nila, upang malaman nila na Ako ang Walang-Hanggan na nagpapabanal sa kanila.
Rashi
to be for a sign It is a great sign for them, that I gave the day of My resting to them for a resting. Behold this is a phenomenal manifestation that I hallowed them to Myself.