And they rose early in the morning and went out to the Wilderness of Tekoa. And as they went out, Jehoshaphat stood and cried, and said, Hear me, O Judah, and you inhabitants of Jerusalem; put your trust in the Lord God, and your trust shall be honored; trust in His prophet, and you shall prosper.

Because they believed not in God, and trusted not in His salvation.

Moreover they despised the desirable land, and did not believe His word.

And the head of Ephraim is Samaria, and the head of Samaria the son of Romaliah; but if you believe not, neither will you at all understand.

Take heed, brothers, lest there be in anyone of you a wicked heart of unbelief in departing from the living God;

And to whom did He swear that they would not enter into His rest, except to those who disobeyed?

And we see that they were not able to enter on account of unbelief.

But I want to remind you, though you once knew this, that the Lord, having saved the people out of the land of Egypt, afterward destroyed those who did not believe.