Agur confesses knowledge's limits

Agur begins by confessing that he does not have what the proud pretend to have

The words of Agur the son of Jakeh, even the prophecy: the man spoke to Ithiel, even to Ithiel and Ucal. Surely I am more brutish than any man, and do not have the understanding of a man. I neither learned wisdom, nor have the knowledge of the holy.

A new voice, not Solomon's, opens with failure of pretension. Brutish is Agur's own word for how little he knows, not a slur you may throw at someone else. He has not learned wisdom as a completed store, and he does not possess knowledge of the Holy One as a held object. Humility here is the doorway, not a pose that secretly claims depth.

The questions empty the human claim to have fetched God, then the word is fenced

Who has ascended into heaven, or descended? Who has gathered the wind in his fists? Who has bound the waters in a garment? Who has established all the ends of the earth? What is his name, and what is his son's name, if you can tell? Every word of God is pure; he is a shield to those who put their trust in him. Do not add to his words, lest he reprove you, and you be found a liar.

Ascent, wind in fists, waters in a garment, ends of the earth: these are Creator acts. The name-questions humble the student who talks as if God were a fact sheet. Pure word means unalloyed, not a license to treat every human slogan as that word. Shield is for trusters, still not a prosperity formula. Adding to his words is the liar's project: padding, improving, or commandeering speech God did not give. Reproof is being exposed as that liar.