Treasury of Scripture
Agur
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; and which, it is probable, was added by the 'men of Hezekiah'
Proverbs 31:1 The words of king Lemuel, the prophecy that his mother taught him.
2 Peter 1:19-21 We have also a more sure word of prophecy; whereunto you do well that you take heed, as to a light that shines in a dark place...