'Keep the Sabbath' in the Bible

Keep the sabbath, therefore; for it is holy unto you; every one that profaneth it shall certainly be put to death: yea, whoever doeth work on it, that soul shall be cut off from among his peoples.

And the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations it is an everlasting covenant.

Keep the sabbath day to hallow it, as Jehovah thy God hath commanded thee.

Some of the Pharisees therefore said, This man is not of God, for he does not keep the sabbath. Others said, How can a sinful man perform such signs? And there was a division among them.