'Sabbath' in the Bible

Blessed is the man who does this, and the son of man who holds it fast; who keeps the Sabbath from profaning it, and keeps his hand from doing any evil."

Also the foreigners who join themselves to Yahweh, to minister to him, and to love the name of Yahweh, to be his servants, everyone who keeps the Sabbath from profaning it, and holds fast my covenant;

"If you turn away your foot from the Sabbath, from doing your pleasure on my holy day; and call the Sabbath a delight, [and] the holy of Yahweh honorable; and shall honor it, not doing your own ways, nor finding your own pleasure, nor speaking [your own] words:

It shall happen, that from one new moon to another, and from one Sabbath to another, shall all flesh come to worship before me," says Yahweh.