What does Proverbs 8:6 mean?

Mankind is openly invited, by wisdom, to heed what she says (Proverbs 8:1–4). Her words dispense teachings described using the word ne'ged, most literally meaning something strongly contrasted or clear. In practice, the term is applied to leaders, rulers, and those otherwise "above" their peers in some way. That clarity, superiority, and connection to that which is morally "prudent" (Proverbs 8:5) results in the typical English translation of "noble."

Parallel to that, wisdom's words are depicted as truth, and will be contrasted to speech which is "crooked" (Proverbs 8:8).

The Bible is the only infallible source of wisdom about God, the world around us, ourselves, heaven and hell, the way to God, personal relationships, and how to live a truly meaningful life. Science may impart knowledge on many topics, but the Bible imparts eternal truths. Further, whatever biblical wisdom imparts is true. It is "breathed out by God" (2 Timothy 3:16). Jesus is the Truth (John 14:6). In His high priestly prayer Jesus asked the Father to sanctify believers in the truth. He added, "Your word is truth" (John 17:17). The Bible presents words that are faultless. Joshua told Israel, "You know in your hearts and souls, all of you, that not one word has failed of all the good things that the LORD your God promised concerning you. All have come to pass for you; not one of them has failed" (Joshua 23:14).