Commentaries:
God said these other nations had defiled themselves and the land because they had violated the third commandment, "taking the name of God in vain." We break this commandment, not only in speech, but also by using or bearing His name in an unworthy, profane way in our conduct.
Martin G. Collins
The Third Commandment
Other Forerunner Commentary entries containing Leviticus 18:21:
Exodus 20:13
Deuteronomy 17:17
Judges 11:29-40
1 Kings 11:1-4