Cross reference
Psalms 119:152
152 I have long had knowledge that your unchanging word is for ever.
Luke 21:33
33 Heaven and earth will come to an end, but my words will not come to an end.
Psalms 89:34-37
34 I will be true to my agreement; the things which have gone out of my lips will not be changed.
35 I have made an oath once by my holy name, that I will not be false to David.
36 His seed will not come to an end for ever; the seat of his kingdom will be like the sun before me.
37 It will be fixed for ever like the moon; and the witness in heaven is true. (Selah.)
Psalms 111:7-8
7 The works of his hands are faith and righteousness; all his laws are unchanging.
8 They are fixed for ever and ever, they are done in faith and righteousness.
Psalms 119:144
144 The righteousness of your unchanging word is eternal; give me wisdom so that I may have life.
Psalms 119:160
160 Your word is true from the first; and your upright decision is unchanging for ever.
Ecclesiastes 3:14
14 I am certain that whatever God does will be for ever. No addition may be made to it, nothing may be taken from it; and God has done it so that man may be in fear before him.