Deuteronomy 3

"'I pray, let me cross over and see the good land beyond the Jordan, those pleasant mountains, and Lebanon.’ 'But the Lord was angry with me on your account, and would not listen to me. So the Lord said to me: ‘Enough of that! Speak no more to Me of this matter.' " vv.25-26

Read chapter 3
All of the sudden we start reading in the first person than the third person in this chapter.  Moses, the writer of Deuteronomy, is using "I" and "me" referring to himself.  This chapter ends with Moses praying and asking God if he may enter the promised land even though he was told he wouldnt back in Numbers 20 when God said, "Because you did not believe Me, to hallow Me in the eyes of the children of Israel, therefore you shall not bring this assembly into the land which I have given them.”  God responds to his prayer with both anger and mercy.  Anger possibly because Moses had a complaining, pitiful cry or because Moses couldn't or wouldn't let go of the leadership and task that he had been in charge of all these 40 plus years or because of judgement and decision by that had already been made.  Mercy because God allowed Moses to see with his eyes the land yet not enter it.   
We all have a longing to witness further manifestations of God's goodness and working yet it's not always for us to be a part of.  Moses had trained up Joshua for many years and it was time to fully pass the baton now and trust through faith.

If God does not by his providence give us what we desire, yet if by his grace he makes us content without, it comes to much the same.