Psalm 118:8 (ESV) … “It is better to take refuge in the Lord than to trust in man.”
It is better in all ways, for first of all it is wiser: God is infinitely more able to help, and more likely to help, than man, and therefore prudence suggests that we put our confidence in him above all others. It is also morally better to do so, for it is the duty of the creature to trust in the Creator.
God has a claim upon his creatures, faith, he deserves to be trusted; and to place our reliance upon another rather than upon himself, is a direct insult to his faithfulness. It is better in the sense of safer, since we can never be sure of our ground if we rely upon mortal man, but we are always secure in the hands of our God.
It is better in its effect upon ourselves: to trust in man tends to make us mean, crouching, dependent; but confidence in God elevates, produces a sacred quiet of spirit, and sanctifies the soul.
It is, moreover, much better to trust in God, as far as the result is concerned; for in many cases the human object of our trust fails from want of ability, from want of generosity, from want of affection, or from want of memory; but the Lord, so far from failing, does for us exceeding abundantly above all that we ask or even think. This verse is written out of the experience of many who have first of all found the broken reeds of the creature break under them, and have afterwards joyfully found the Lord to be a solid pillar sustaining all their weight.