Question 66: What is forbidden in the fourth commandment?
Answer: The fourth commandment forbiddeth the omission or careless performance of the duties required (Ez. 22:26; Amos 8:5; Mal. 1:13), and the profaning the day by idleness (Acts 20:7, 9), or doing that which is in itself sinful (Ez. 23:38), or by unnecessary thoughts, words, or works, about worldly employments or recreations (Jer 17:24-27; Is. 58:13).
Question 67: What are the reasons annexed to the fourth commandment?
Answer: The reasons annexed to the fourth commandment, are God’s allowing us six days of the week for our own lawful employments (Ex. 20:9), his challenging a special propriety in a seventh, his own example, and his blessing the Sabbath day (Ex. 20:11).