5 "And when you pray, do not be like the hypocrites, for they love to pray standing in the synagogues and on he street corners to be seen by men. I tell you the truth, they have received their reward in full. 6 But when you pray, go into your room, close the door and pray to your Father, who is unseen. Then your Father, who sees what is done in secret, will reward you.
God has promised to reward us for prayer done in secret. Prayer should be directed toward God, and no one else. He is the only one who can answer our prayers.
Other promises from God concerning prayer.
God will reward persistent prayer.
7 "Ask and it will be given to you; seek and you will find; knock and the door will be opened to you. 8 For everyone who asks receives; he who seeks finds; and to him who knocks, the door will be opened. 9 "Which of you, if his son asks for bread, will give him a stone? 10 Or if he asks for a fish, will give him a snake? 11 If you, then, though you are evil, know how to give good gifts to your children, how much more will your Father in heaven give good gifts to those who ask him!
Prevailing prayer - George McCluskey
In Point Man, Steve Farrar tells the story of George McCluskey. When McCluskey married and started a family, he decided to invest one hour a day in prayer, because he wanted his kids to follow Christ. After a time, he expanded his prayers to include his grandchildren and great-grandchildren. Every day between 11 a.m. and noon, he prayed for the next three generations.
As the years went by, his two daughters committed their lives to Christ and married men who went into full-time ministry. The two couples produced four girls and one boy. Each of the girls married a minister, and the boy became a pastor. The first two children born to this generation were both boys. Upon graduation from high school, the two cousins chose the same college and became roommates.
During their sophomore year, one boy decided to go into the ministry. The other didn't. He undoubtedly felt some pressure to continue the family legacy, but he chose instead to pursue his interest in psychology. He earned his doctorate and eventually wrote books for parents that became bestsellers. He started a radio program heard on more than a thousand stations each day. The man's name was James Dobson. Through his prayers, George McCluskey affected far more than one family.
19 "Again, I tell you that if two of you on earth agree about anything you ask for, it will be done for you by my Father in heaven.
God will reward belief in prayer.
22 If you believe, you will receive whatever you ask for in prayer."
24 Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours.
God will reward forgiveness in prayer.
25 And when you stand praying, if you hold anything against anyone, forgive him, so that your Father in heaven may forgive you your sins."
God will reward the prayers of those who abide in Him.
7 If you remain in me and my words remain in you, ask whatever you wish, and it will be given you. 8 This is to my Father's glory, that you bear much fruit, showing yourselves to be my disciples.
God will reward prayer in the name of Jesus.
12 I tell you the truth, anyone who has faith in me will do what I have been doing. He will do even greater things than these, because I am going to the Father. 13 And I will do whatever you ask in my name, so that the Son may bring glory to the Father. 14 You may ask me for anything in my name, and I will do it.
16 You did not choose me, but I chose you and appointed you to go and bear fruit-- fruit that will last. Then the Father will give you whatever you ask in my name.
23 In that day you will no longer ask me anything. I tell you the truth, my Father will give you whatever you ask in my name. 24 Until now you have not asked for anything in my name. Ask and you will receive, and your joy will be complete.