Psalms 119:72 - John Gill's Exposition of the Entire Bible

The law of thy mouth [is] better unto me than thousands of gold and silver. The word of God, the doctrines contained in it; which, coming out of the mouth of God, and spoken by him, carries in it weight and authority, commands reverence and respect; and ought to be considered as indeed the word of God and not of man; and so of more value than thousands of pieces of gold and silver; or, as the Targum, than a thousand talents of gold and silver. The truths and doctrines of the word of God are not only comparable to gold and silver for their intrinsic worth and value; but are preferable to them, and to be received before them: David had his thousands of gold and silver, but he esteemed the word of God above them all; and willingly suffered afflictions, that he might understand it better; see Psalms 119:127.