In Numbers 13:33 Moses writes:
“And there we saw the Nephilim (the sons of Anak, who come from the Nephilim), and we seemed to ourselves like grasshoppers, and so we seemed to them.””Numbers 13:33
And then in Isaiah 40:22 God is described by Isaiah as follows:
“It is he who sits above the circle of the earth, and its inhabitants are like grasshoppers; who stretches out the heavens like a curtain, and spreads them like a tent to dwell in;”Isaiah 40:22
So, what was happening at the wilderness wanderings was that of making man into God-like status and size. The problem was not so much viewing themselves as “grasshoppers” but in their viewing the inhabitants of Canaan as God.
We need to be reminded that no human being or group of human beings is to be viewed as indomitable against God’s people when God’s promises are so clear.
Isaiah goes on stating the point:
“Do you not know? Do you not hear? Has it not been told you from the beginning? Have you not understood from the foundations of the earth? It is he who sits above the circle of the earth, and its inhabitants are like grasshoppers; who stretches out the heavens like a curtain, and spreads them like a tent to dwell in; who brings princes to nothing, and makes the rulers of the earth as emptiness. Have you not known? Have you not heard? The Lord is the everlasting God, the Creator of the ends of the earth. He does not faint or grow weary; his understanding is unsearchable. He gives power to the faint, and to him who has no might he increases strength. Even youths shall faint and be weary, and young men shall fall exhausted; but they who wait for the Lord shall renew their strength; they shall mount up with wings like eagles; they shall run and not be weary; they shall walk and not faint.”(Isaiah 40:21–23, 28–31)