Trust in the LORD forever, because GOD the LORD is the Rock eternal.
Isaiah 26:4
God deserves our trust because he never changes. What he has decreed will come to pass. What he has done remains forever. What he continues to do is as constant as the ocean surf, the shining sun, the starry constellations.
The counsel of the LORD stands forever, the purposes of His heart to all generations.
Psalm 33:11
Our lives, by comparison, are unstable and variable as we flit from passion to passing trend. We waste time, energy, and passion on so many pointless and fleeting distractions that we arrive breathless and strained at the end of each day.
We rave about the most popular people and issues of the day, while ranting about individualized injustice and personal misery. Like Job of old, we come to view our lives as a constant, unfair struggle that deserves to be broadcast to the widest possible audience:
I wish that my words were recorded and inscribed in a book, by an iron stylus on lead, or chiseled in stone forever.
Job 19:23-24
The fallacy of this type of thinking is borne out even in the conclusion of Job’s story: his fortunes are restored, his honor is retained, and the eternal justice of God is exonerated.
When we really pause to consider that God is eternal and we are not, how can we possibly think that our ways are better than his? Have we learned nothing from the natural course of life, how the wisdom of the aged is more stable than the impetuous passion of youth? If this is true in a natural sense, how much more with the One who never changes for all of eternity?
We are encouraged by the prophet Isaiah to trust in God if for no other reason than simply because he is eternal. We need to allow God to be God, and to recognize that we are not. When we do so, we can then have clarity through the settling dust of our temporary existence to see him for who he is, and place our trust where it really belongs: in his gracious, unchanging hands.
The Core of the Bible 