Sanctifying the Lord's Day #2

Westminster Shorter Catechism Question 60
How is the sabbath to be sanctified?
Answer: The sabbath is to be sanctified by a holy resting all that day, even from such worldly employments and recreations as are lawful on other days; and spending the whole time in the publick and private exercises of God's worship, except so much as is to be taken up in the works of necessity and mercy.