Only Caleb son of Jephunneh will enter it. He has remained faithful to me, and I will give him and his descendants the land that he has explored. Deuteronomy 1:36
God knows our heart and is aware, in advance, of what we are capable of doing. He is aware of where our strength is and where our weakness lies, unlike us, who do not know who we are. That is why we do not know how we are going to react when God sends us to explore new lands for us to conquer.
This conquest can be a new job, expanding the business, moving to another house, buying real estate, moving to another country, another position in the ministry, etc. All this fills us with expectations, but, when we go out to reconnoiter the territory that He pointed out, we run into unexpected situations that we do not know how to handle. This makes all the joy disappear and we are filled with doubt and fear.
We forget that He sent us and He backs us up. That is why we lose so many blessings, for we see obstacles as bigger than God, and this makes us quit the fight against the giants who are opposed to said blessings.
When God gives us something, we must know that it belongs to us and no one else. That is why Caleb was rewarded, for he did not give room for intimidation, but he believed. If God has spoken to you, have no doubt, go out to explore the land and, when you see it, look at giants such as locusts because that land is yours.