(Proverbs 8:7 KJV) For my mouth shall speak truth; and wickedness is an abomination to my lips.
Proverbs spends a fair amount of time talking about evil with all of its attributes and variations. It also spends time on the character of righteousness. On that list is “truth” (571). We are to “utter” (1897) truth. In English we have at least two different meanings depending on whether it is used as a verb or an adjective. Both are helpful if we are talking about living upright lives.
Here it is used as a verb. It is interesting to me the scope of meaning in the word. Of course it means to speak or say. In addition it carries the baggage of moan, groan and muse. It is even translated “mutter”. I don’t know if you mutter but I do. Even that must be truth.
It would help to look at the adjective also. It is not the meaning here but in English “utter” as an adjective means total and absolute. To you could say that the believer is to speak total truth at all times.
So? Just as we need to be aware that there is evil around us we need to acknowledge that God expects us to be different. Our standard is truth. We are surrounded by a culture that is making all kinds of excuses for lies and deceit. We are not part of that.