Matthew Henry and continuators on Proverbs 12:19

19 The lip of truth shall be established for ever: but a lying tongue is but for a moment.

Be it observed, to the honour of truth, that sacred thing, 1. That, if truth be spoken, it will hold good, and, whoever may be disobliged by it and angry at it, yet it will keep its ground. Great is the truth and will prevail. What is true will be always true; we may abide by it, and need not fear being disproved and put to shame. 2. That, if truth be denied, yet in time it will transpire. A lying tongue, that puts false colours upon things, is but for a moment. The lie will be disproved. The liar, when he comes to be examined, will be found in several stories, and not consistent with himself as he is that speaks truth; and, when he is found in a lie, he cannot gain his point, nor will he afterwards be credited. Truth may be eclipsed, but it will come to light. Those therefore that make a lie their refuge will find it a refuge of lies.