Deuteronomy 5:12

Observe the day of the sabbath -- to sanctify it, as Jehovah thy God hath commanded thee;

Exodus 20:8-11

'Remember the Sabbath-day to sanctify it;

Isaiah 56:6

And sons of the stranger, who are joined to Jehovah, To serve Him, and to love the name of Jehovah, To be to Him for servants, Every keeper of the sabbath from polluting it, And those keeping hold on My covenant.

Isaiah 58:13

If thou dost turn from the sabbath thy foot, Doing thine own pleasure on My holy day, And hast cried to the sabbath, 'A delight,' To the holy of Jehovah, 'Honoured,' And hast honoured it, without doing thine own ways, Without finding thine own pleasure, And speaking a word.

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