One of my favorite game shows of all time has to be "Let’s Make A Deal." Monty Hall hosted the show that spans 3 decades. He allowed contestants dressed in their wackiest costumes the chance to win cash and other fabulous prizes. The object of the game was to make the best deal possible based on the choices that Hall had presented. You could keep the initial offer or make a deal. Sometimes contestants made a good decision. Other times they were left with a prank prize they called a "zonk."
Have you ever tried to make a deal with God? When we are in a situation, we cry out to God saying, "If you would only do this, I promise to do this in return." After our offer was on the table, we quickly learned God does not make deals. It’s not that He couldn’t keep His end of the bargain. We would likely not keep ours. Honoring our word seems easy but it is quite hard. It would entitle us to be perfect in the area in which we made the agreement. Matthew 5:48 admonishes us to be perfect as our heavenly Father is perfect.
Though we will never be, God wants us to strive to be. In context, this perfection means being spiritually mature. (i.e. loving those who hate us, pray for those who persecute us, showing kindness to friend and foes) This mere listing alone would void most of our deals. God never negotiates deals in our Christian walk. He asks us to walk in faith and He will handle the distributing of prizes (blessings).
"Be perfect, therefore, as your heavenly Father is perfect." Matthew 5:48 (NIV)