This psalm is attributed to Asaph, a temple musician. The last third of it chills the bones. It seems to come from God and talk to those people who use His name and quote His words from impure motives.
He challenges the right of people to use the name and laws of God if they don't obey those same laws. He accuses them of aiding and abetting thieves and consorting with adulterers.
He speaks to their penchant for slander and vilification and lying. It sounds a lot like the society in which we live today.
We use the name and words of the Lord without believing in their power. We quote scripture to prove our point without regard for the context of the verse we are quoting. We forget the power of God and look to our own devices. A fatal mistake and one we would do well to avoid at all costs.
Help us to remember the power of Your words and our responsibility to use them with reverence and wisdom. Keep us faithful and obedient to Your laws.
In Jesus' most precious name.