אַשְׁרֵ֤י אֱנוֹשׁ֙ יַעֲשֶׂה־זֹּ֔את וּבֶן־אָדָ֖ם יַחֲזִ֣יק בָּ֑הּ שֹׁמֵ֤ר שַׁבָּת֙ מֵֽחַלְּל֔וֹ וְשֹׁמֵ֥ר יָד֖וֹ מֵעֲשׂ֥וֹת כָּל־רָֽע׃ (ס)
Happy is the man that doeth this, And the son of man that holdeth fast by it: That keepeth the sabbath from profaning it, And keepeth his hand from doing any evil.
Read halakhic rulings (Jewish law) on Isaiah 56:2: and classical halakhic sources.