“Hear, O Israel: Thou art to pass over Jordan this day, to go in to possess nations greater and mightier than thyself, cities great and fenced up to heaven, 2A people great and tall, the children of the Anakims, whom thou knowest, and of whom thou hast heard say, Who can stand before the children of Anak! 3Understand therefore this day, that the LORD thy God is he which goeth over before thee; as a consuming fire he shall destroy them, and he shall bring them down before thy face: so shalt thou drive them out, and destroy them quickly, as the LORD hath said unto thee.” Dt. 9:1-3
Of course those nations are greater and mightier than Israel, what would be the big deal to go in and conquer a cowardly feeble people. This situation they were in was a constant reminder to them that their dependence must remain in God. Every time you face a trial bigger than you, you are just being reminded that your dependence must remain in God.