8 Bible Verses about Underestimation

Then ye answered and said to me, We have sinned against the LORD, we will go up and fight, according to all that the LORD our God commanded us. And when ye had girded on every man his weapons of war, ye were ready to ascend the hill.

And they returned to Joshua, and said to him, Let not all the people go up; but let about two or three thousand men go up and smite Ai; and make not all the people to labor thither; for they are but few.

Now therefore, our God, the great, the mighty, and the terrible God, who keepest covenant and mercy, let not all the trouble seem little before thee, that hath come upon us, on our kings, on our princes, and on our priests, and on our prophets, and on our fathers, and on all thy people, since the time of the kings of Assyria to this day.

For the turning away of the simple shall slay them, and the prosperity of fools shall destroy them.

And ye have forgotten the exhortation which speaketh to you as to children, My son, despise not thou the chastening of the Lord, nor faint when thou art rebuked by him:

And they were offended in him. But Jesus said to them, A prophet is not without honor, save in his own country, and in his own house.

And Nathanael said to him, Can there any good thing come out of Nazareth? Philip saith to him, Come and see.

Then ye answered and said to me, We have sinned against the LORD, we will go up and fight, according to all that the LORD our God commanded us. And when ye had girded on every man his weapons of war, ye were ready to ascend the hill. And the LORD said to me, Say to them, Go not up, neither fight; for I am not among you; lest ye be smitten before your enemies. So I spoke to you; and ye would not hear, but rebelled against the commandment of the LORD, and presumptuously ascended the hill.read more.
And the Amorites, who dwelt on that mountain, came out against you, and chased you, as bees do, and destroyed you in Seir, even to Hormah.