שֵׁ֥שֶׁת יָמִ֖ים תִּלְקְטֻ֑הוּ וּבַיּ֧וֹם הַשְּׁבִיעִ֛י שַׁבָּ֖ת לֹ֥א יִֽהְיֶה־בּֽוֹ׃
Six days ye shall gather it; but on the seventh day is the sabbath, in it there shall be none.’
Read kabbalistic (mystical) interpretation of Exodus 16:26: and classical mystical sources.