How is the sabbath to be sanctified?

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 days¹⁴⁵; and spending the whole time in the public and private exercises of God’s worship¹⁴⁶, except so much as is to be taken up in the works of necessity and mercy¹⁴⁷.