Joshua 4:24

that all the people of the earth might know The miracle made the passage possible and easy for the Elect Nation, but it was intended also to have its effect on the nations around, and impart to them a knowledge of the power of Jehovah, the God of Israel.

that ye might fear The tribes of Israel were now in the enemy's country, and they had learnt afresh, as their fathers had done before them at the Red Sea, three important lessons; (i) that the power of Jehovah was unlimited; (ii) that it would be exerted on their behalf so long as they were obedient to His commands; (iii) that their leader was acting under the direct command and guidance of their Invisible Protector. These lessons were of universal application and were to be impressed on generation after generation.