Many think the Third Commandment merely prohibits profane speech. In reality, it regulates the purity and quality of our worship of the great God.
In the the Third Commandment, God's name describes His character, attributes, and nature. If we bear God's name, we must reflect His image and His character.
The prohibition against taking God's name in vain is the least understood commandment. When we bear God's name, we are to bear His character and nature.
Many think the third commandment deals only with euphemisms and swearing, but it goes much deeper. It regulates the quality of our worship and glorifying God.
To appropriate the name of God means to represent His attributes, character and nature. Our behavior must imitate Christ just as Christ revealed God the Father.