1 John 5:14-15
14 Now this is the confidence that we have in Him, that if we ask anything according to His will, He hears us.
15 And if we know that He hears us, whatever we ask, we know that we have the petitions that we have asked of Him.
One of the keys to effect prayer is knowing what you have prayed about is God’s will for you. You can’t believe you have received something from God if you don’t know it is God’s will. But when we know we have prayed according to His will we know God not only heard our prayer, we know we have what we have asked of Him. Think of how many times people have prayed and God did not hear their prayer because they were not asking in line with His will. The only prayer God can hear is the prayer of faith and that is a prayer based on the will of God. All we have to do is go to the Word of God and find out what His will is for us and establish that in our hearts. Then when we petition God according to His Word we will know we have our petition. Some people think God will hear them if they just pray long enough but that is not true either. God has no problem hearing any prayer that is prayed in faith according to His will. So before you petition God for anything find His will in His word. Settle it in your heart that it is His will for you. Then when you pray you will know He has heard you, and you will know you have what you have asked of Him. Then just keep thanking Him for what He has said is already yours.