Genesis 18-9-33 Understanding God's Ways, Praying in God's Word

Understanding God's ways gives the Christian great insight into the consequences of man's actions. When God told Abraham that He would destroy Sodom, Abraham appealed to God based on the righteous that may have still been in Sodom. Abraham knew God's word and God's ways enough to pray the prayer of a righteous man. When we read the headlines in the newspapers today, do we know God's word enough to pray in His will? Or are we like Sarah, when she heard God would bless her with a child and just come up with all the objections of why God can't do something?