Isaiah 40:8
"The grass withereth, the flower fadeth: but the word of our God shall stand for ever."
Cross References (ranked by relevance)
Heaven and earth shall pass away: but my words shall not pass away.
Heaven and earth shall pass away, but my words shall not pass away.
But the word of the Lord endureth for ever. And this is the word which by the gospel is preached unto you.
For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
If he called them gods, unto whom the word of God came, and the scripture cannot be broken;
As for me, this is my covenant with them, saith the LORD; My spirit that is upon thee, and my words which I have put in thy mouth, shall not depart out of thy mouth, nor out of the mouth of thy seed, nor out of the mouth of thy seed’s seed, saith the LORD, from henceforth and for ever.
But my words and my statutes, which I commanded my servants the prophets, did they not take hold of your fathers? and they returned and said, Like as the LORD of hosts thought to do unto us, according to our ways, and according to our doings, so hath he dealt with us.
The people answered him, We have heard out of the law that Christ abideth for ever: and how sayest thou, The Son of man must be lifted up? who is this Son of man?