The common cultural view is that taking the Lord's name in vain is to use the names of God as some kind of swear word. However, the Bible offers a broader look that includes this type of usage as well as others.
What is taking the Lord's name in vain?
Exodus 20 is the first presentation of the Ten Commandments. Verse 7 states, "You shall not take the name of the LORD your God in vain, for the LORD will not hold him guiltless who takes his name in vain." The word "vain" is the Hebrew word that describes something unreal. It includes the idea of using God's name in any inappropriate manner or with irreverence.
Examples of using the Lord's name in vain can include using God's names when cussing or swearing, to misuse God's name in oaths, to joke about God in an inappropriate manner, or to belittle the name of God. In contrast with these practices, Jesus Himself taught His disciples to pray by starting, "Our Father in heaven, hallowed be your name" (Matthew 6:9).
In fact, traditional Judaism does not even say the Hebrew word for Lord (Yahweh) but instead uses another word for God (Adonai) out of reverence. As a result, Jewish writers using English will sometimes use G-d as a way of translating this practice into English from Hebrew. While there is no biblical command that requires this practice, this is one way in which Jewish tradition has sought to avoid using the Lord's name in vain, taking great care to treat God's name as holy.
This principle applies not only to God the Father, but also to God the Son and God the Spirit. Jesus humbled Himself by coming to earth in human form, but Philippians 2:9-11 clearly states, "Therefore God has highly exalted him and bestowed on him the name that is above every name, so that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, and every tongue confess that Jesus Christ is Lord, to the glory of God the Father."
The Holy Spirit is also to be revered. When Ananias and Sapphira lied to the apostles, Peter said, "Ananias, why has Satan filled your heart to lie to the Holy Spirit and to keep back for yourself part of the proceeds of the land? While it remained unsold, did it not remain your own? And after it was sold, was it not at your disposal? Why is it that you have contrived this deed in your heart? You have not lied to man but to God" (Acts 5:3-4).
We are not to take God or His names lightly. Instead, we are to speak of God with reverence and live for Him fully. He alone is worthy of all honor and glory and praise. This includes our utmost respect when using His names.
Is it considered taking the Lord's name in vain to say OMG or words like 'geez'?
Is swearing / cussing / cursing a sin?
Joking - Is it a sin? What does the Bible say about jokes?
Does God hate sin? Why?
How can I know what is a sin and what isn't?
Truth about Sin