Jesus taught that prayer must be with faith (Matthew 21:21-22; Mark 11:22-26) 

In theses verses I see three aspects of faith in prayer that Jesus teaches.  First of all…

(1) Faith must be in God.  Matthew 21:22 says, “Have faith in God.”  Prayer with faith, therefore, is prayer that believes in God and in the promises that He has given us.  Then it is prayer that expects God to answer based on those promises; it is prayer that has a continuing hope for the answer and a lasting energy to pray until the answer comes.  Secondly…

(2) Faith must be with obedience.  Prayer with faith is prayer that doesn’t just pray and then believe that God will do it by Himself without us; it is prayer that counts on God to help usdo it; it is prayer that stops praying and starts obeying.

In Mark 11:23 Jesus…