Today, on our next to last chapter of Proverbs, we have a new human penmen - Agur. Not much is not for sure about him, but the Treasure of Scripture Knowledge says this: Agur was probably a public teacher, and Ithiel and Ucal, his pupils; and this was the massa, or oracle, which he delivered, not by his own wisdom, but by the Holy Spirit, for the benefit of man.
One of the great truths he touches on is found in Proverbs 30:5 Every word of God is pure: he is a shield unto them that put their trust in him. You get the sense from the start of the chapter that Agur is letting us know that these are not his words, because his words are brutish and lack wisdom and understanding. BUT, the words of God, and the Word of God, is pure. Pure from any doctrinal error, pure from any sinful corruption, and pure in It's preservation for us today in the King James Version for the English speaking people.
It is my prayer that you can sing with the Psalmist in Psalm 119:140 Thy word is very pure: therefore thy servant loveth it.