Ve'eschana What is grace

Ve'eschana

What is grace

Moshe reports the failure of his prayer (וָאֶתְחַנַּן (3:3).  He then spends most of the chapter reviewing the covenant and exhorting that people to follow commandments.  Although Moses follow the commandments to an extent that no other person could, his prayer to enter the land is denied. What  does that mean for my prayers and yours?
 
It is interesting that when he speaks about the inhabitants of the Land, the same word is used  וְלֹא תְחָנֵּם( 7:2) .  Rashi implies that the word may be related to settling of the Land.  The word  does seem to have a connotation of the plea for acceptance.
 
The Land his tough.