Q. 119. What are the sins forbidden in the fourth commandment?

A.
The sins forbidden in the fourth commandment are, all omissions of the duties required,[630] all careless, negligent, and unprofitable performing of them, and being weary of them;[631] all profaning the day by idleness, and doing that which is in itself sinful;[632] and by all needless works, words, and thoughts, about our worldly employments and recreations.[633]

[630] Ezekiel 22:26. Her priests have violated my law, and have profaned mine holy things: they have put no difference between the holy and profane, neither have they showed difference between the unclean and the clean, and have hid their eyes from my sabbaths, and I am profaned among them.
[631] Acts 20:7, 9. And upon the first day of the week, when the disciples came together to break bread, Paul preached unto them, ready to depart on the morrow; and continued his speech until midnight.... And there sat in a window a certain young man named Eutychus, being fallen into a deep sleep: and as Paul was long preaching, he sunk down with sleep, and fell down from the third loft, and was taken up dead.
Ezekiel 33:30-32. Also, thou son of man, the children of thy people still are talking against thee by the walls and in the doors of the houses, and speak one to another, every one to his brother, saying, Come, I pray you, and hear what is the word that cometh forth from the LORD. And they come unto thee as the people cometh, and they sit before thee as my people, and they hear thy words, but they will not do them: for with their mouth they show much love, but their heart goeth after their covetousness. And, lo, thou art unto them as a very lovely song of one that hath a pleasant voice, and can play well on an instrument: for they hear thy words, but they do them not.
Amos 8:5. Saying, When will the new moon be gone, that we may sell corn? and the sabbath, that we may set forth wheat, making the ephah small, and the shekel great, and falsifying the balances by deceit?
Malachi 1:13. 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.
[632] Ezekiel 23:38. Moreover this they have done unto me: they have defiled my sanctuary in the same day, and have profaned my sabbaths.
[633] Jeremiah 17:24, 27. And it shall come to pass, if ye diligently hearken unto me, saith the LORD, to bring in no burden through the gates of this city on the sabbath day, but hallow the sabbath day, to do no work therein.... But if ye will not hearken unto me to hallow the sabbath day, and not to bear a burden, even entering in at the gates of Jerusalem on the sabbath day; then will I kindle a fire in the gates thereof, and it shall devour the palaces of Jerusalem, and it shall not be quenched.
Isaiah 58:13. 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.