You must understand that Israel's journey from Egypt into the Promised Land is a picture for Christians to study and follow. Not only does this represent our freedom from sin and our entry into righteousness and peace with God, but it also represents passing from a place where sin dominated every area of our life, to a place where God's favor and promises can be our reality.
We all have lived in Egypt. We were all born there. We were all born into sin and we were all robbed of different things by the devil. I lost years of my life to bad decisions. I lost relationships and opportunities and all sorts of other things because he deceived me and stole them from me. You may not even realize it, but we have all suffered loss because of sin in our lives and in the world. BUT God does not want that for us. God wants to move us into the land of promise where the land is flowing with milk and honey, where there is all the provision and safety we will ever need, where we can have houses, and families and lands now in this time, with every other good and perfect gift that comes from above.
You probably know what happened to those people, none of them except the two who had faith in God (Joshua and Caleb) lived to see the land.
Listen to what God is saying,
"Only rebel not against the Lord, and don't fear the giants; for they are bread for us; their defense is departed from them, and the Lord is with us, fear them not. (Numbers 14:9)
Whatever giants you are facing, whatever stands in your way, let us go up at once, this is our time to take the land. If God be for us then nothing can stand against us.