וְהָיָ֗ה מִֽדֵּי־חֹ֙דֶשׁ֙ בְּחָדְשׁ֔וֹ וּמִדֵּ֥י שַׁבָּ֖ת בְּשַׁבַּתּ֑וֹ יָב֧וֹא כָל־בָּשָׂ֛ר לְהִשְׁתַּחֲוֺ֥ת לְפָנַ֖י אָמַ֥ר יְהוָֽה׃
And it shall come to pass, that from one new moon to another, and from one sabbath to another, shall all flesh come to worship before Me, Saith the LORD.
Targum Jonathan on Isaiah
And it shall come to pass at the time of the beginning of each month, and at the time of each Sabbath, that all flesh shall come to worship before me, saith the Lord.