Q61: What is forbidden in the fourth commandment?
A: The fourth commandment forbiddeth the omission or careless performance of the duties required,1 and the profaning the day by idleness, or doing that which is in itself sinful,2 or by unnecessary thoughts, words, or works, about our worldly employments or recreations.3
1. Ye said also, Behold, what a weariness is it! and ye have snuffed at it, saith the LORD of hosts; and ye brought that which was torn, and the lame, and the sick; thus ye brought an offering: should I accept this of your hand? saith the LORD. (Malachi 1:13)
2. They have defiled my sanctuary in the same day, and have profaned my sabbaths. (Ezekiel 23:38b)
3. If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the LORD, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words. (Isaiah 58:13)