Joshua 1:8 (NKJV)
There are many things that can be set up so that they take place automatically without anyone being involved. For example, computer programs can be set up to run on a regular basis. Things like backing up the files in a computer, running a scan for viruses or checking for updates can be done automatically. Once something is set up to run automatically you usually don't give much thought to it. But even though something is set up to run automatically it should still be checked on from time to time to be sure it is running correctly. Failure to do this could lead to problems.
In the Old Testament, people were required to follow the Law and obey what God had said in order to be blessed. Blessings came because of obedience and being cursed was the result of disobedience. Jesus came to fulfill the Law and to bring grace and truth. Because of Jesus, we are now blessed with every spiritual blessing in heavenly places. What God did through the death and resurrection of Jesus qualifies us to have everything we need to live the life He has called us to live. The problem comes when we just expect these blessings to automatically come to us without any involvement on our part.
As God told Joshua, there is something we must do to make our way prosperous and have good success. In James 1 it tells us that it is the person who hears the Word and does what the Word says who is blessed. We often make the mistake of thinking that all of the good things that God has for us will just come to us and be a part of our life automatically because of what Jesus did. We place all of the responsibility on God and ignore our part of acting on what God has promised us. We need to know what belongs to us and then act in faith on what God has told us belongs to us to have those things as a part of our life.