Thou shalt not take the name of the LORD thy God in vain;
for the LORD will not hold him guiltless that taketh his name in vain.
Exodus 20:7
The original Hebrew “Nasa” (pronounced naw-saw) literally reads, “Do not carry the name of the Lord your God in vain.”
2 Observations:1) How many have carried God's name in vain----in other words have violated God's Law in the name of God which in essence turns off nonbelievers to hearing the truth.
In other words doing things like torturing to death in the name of God such as during the Inquisitions.
2) Notice- this is the only commandment God says He will not forgive for breaking.