What is the meaning of the saying the devil is in the details?

The English proverb the devil is in the details is a reminder of the importance of the little things. When we step back to take in the big picture, we easily overlook elements that, although tiny and seemingly insignificant, may prove vital to the success of the work at hand. We disregard details at our own peril.

The proverb the devil is in the details is assumed to have originated in the twentieth century. Some linguists trace its roots to another, earlier adage, God is in the details, a saying that emphasized the need for carefulness, attention, and precision as a means to excellence. Saying, “God is in the details,” meant that the road to distinction lies through meticulousness. Whether stated positively as God is in the details or negatively as the devil is in the details, the main truth is that details are important.

A thought similar to the devil is in the details is expressed in Song of Solomon 2:15: “Catch for us the foxes, the little foxes that ruin the vineyards, our vineyards that are in bloom.” It’s the little foxes—the tiny details—that spoil the grapes. Small things can trip us up, and giving them due consideration is worth our while.

Assembling a piece of prefabricated furniture is not usually a difficult task. But the devil is in the details, and skipping one step or losing one bolt can lead to structural failure. Signing a contract is commonplace in business, but it pays to read the fine print before entering any agreement—the devil is in the details. An email sent with one wrong word can jeopardize a whole career. The devil is in the details. Danger lurks in disregarded particulars.

The Authorized Version of the Bible (the King James Version) contains nearly 800,000 words. But a printing in 1631 is infamous today for one omitted word. England’s royal printers at the time were Robert Barker and Martin Lucas, commissioned by King Charles I to produce the 1631 edition of the KJV. They printed about 1,000 copies, but then someone found an error: Exodus 20:14, part of the Ten Commandments, read, “Thou shalt commit adultery.” The word not may be a little word, but it is quite necessary in Exodus 20:14. For their misprint in what is now called the Wicked Bible, Barker and Lucas were fined £300, and King Charles revoked their printing license. Bankrupt and disgraced, the printers discovered too late that the devil is in the details.

Attention to detail is commendable. In the Bible, Noah set an example of thoroughness and precision in the building of the ark: “Noah did everything exactly as God had commanded him” (Genesis 6:22, NLT). For Noah and his family, attention to detail was literally a matter of life and death.

In giving the law, God warned Moses to “make this tabernacle and all its furnishings exactly like the pattern I will show you” (Exodus 25:9; cf. Hebrews 8:5). Moses obeyed, but, later, two of Aaron’s sons neglected to follow some details regarding their service in the tabernacle, and “they died before the Lord” (Leviticus 10:2). Before entering the Promised Land, God cautioned all the Israelites, “Do not add to what I command you and do not subtract from it, but keep the commands of the Lord your God that I give you” (Deuteronomy 4:2).

Knowing that the devil is in the details, we should not allow overconfidence, complacency, or haste to blind us to our need to exercise care. In the tasks we undertake, we work for the Lord, serving Him from the heart and waiting for His reward (Colossians 3:23–24).

The devil is in the details reminds us not to lose sight of the little things. Of course, it’s also possible to focus so much on the details that we lose sight of the big picture. The Pharisees were guilty of that error, for which Jesus rebuked them with another proverb: “You strain out a gnat but swallow a camel” (Matthew 23:24). Balance in all of life is needful.