Deuteronomy 3:22

18 At that time I commanded you: “The LORD your God has given you this land to possess. All your men of valor are to cross over, armed for battle, ahead of your brothers, the Israelites.

19 But your wives, your children, and your livestock—I know that you have much livestock—may remain in the cities I have given you,

20 until the LORD gives rest to your brothers as He has to you, and they too have taken possession of the land that the LORD your God is giving them across the Jordan. Then each of you may return to the possession I have given you.”

21 And at that time I commanded Joshua: “Your own eyes have seen all that the LORD your God has done to these two kings. The LORD will do the same to all the kingdoms you are about to enter.

22 Do not be afraid of them, for the LORD your God Himself will fight for you.”

23 At that time I also pleaded with the LORD:

24 “O Lord GOD, You have begun to show Your greatness and power to Your servant. For what god in heaven or on earth can perform such works and mighty acts as Yours?

25 Please let me cross over and see the good land beyond the Jordan—that pleasant hill country as well as Lebanon!”

26 But the LORD was angry with me on account of you, and He would not listen to me. “That is enough,” the LORD said to me. “Do not speak to Me again about this matter.

Read all of Deuteronomy 3