Here are lessons on the fourth commandment in the Ten Commandments. It has to do with the “Remember the Sabbath day, to keep it holy.”
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] (WLC).