Obidience guarantees success not prayer

Prayer is a must but prayer doesn't guarantee success. It is Obedience that does. Obeying the laws of success doesn't need prayer. We pray to petition God but we obey him to be successful even in our prayer. Deuteronomy 5 says "walk in obedience to all that the Lord your God has commanded you, so that you may live and prosper and prolong your days in the land that you will possess. Deuteronomy 5 :33