Deuteronomy 1:22 - 25

"Then all of you came to me and said, 'Let us send men ahead to spy out the land for us and bring back a report about the route we are to take and the towns we will come to.' The idea seemed good to me; so I selected twelve of you, one man from each tribe. They left and went up into the hill country, and came to the Valley of Eshkol and explored it. Taking with them some of the fruit of the land, they brought it down to us and reported, 'It is a good land that the Lord our God is giving us.'" NIV translation

Moses continues his parting words by remembering his second mistake which was sending men to spy out Canaan. This was not of God because He had already told them that the land was good.

Instead of trusting in the Lord and telling the people to trust in God, Moses agreed to sending men to look it over. This lack of faith would open the door to disobedience as we shall see. A part of the job of any good leader is to get the people to grow in their trust in God. When faced with the opportunity, Moses did not seek the will of God but went with what seemed like a good idea.