Read Romans 8:22-28
Our difficulties in prayer also show up in our lack of power and faith. Of course, if our prayers are selfish, inconsistent and lacking in spiritual understanding, they cannot be powerful. But more than that, they are empty because they are not supported by faith. Without faith we know it is impossible to please God (Heb. 11:6). James told us that the person who prays must "ask in faith, nothing wavering. For he that wavereth is like a wave of the sea driven with the wind and tossed. For let not that man think that he shall receive any thing of the Lord. A double minded man is unstable in all his ways" (James 1:6-8).
Do we have faith to ask God for the big things He wants to give us? Only the Spirit of God can provide us with that faith. We must pray, "Lord, teach us to pray." Our prayers must be in harmony with God's will, and then we can expect things to happen as God wants them to happen. We will see answers and victories.
We often think that if we have a burden to pray about something, God is bound to answer us if we get someone else to pray with us. Such unity in prayer is merely man-made. True unity must come from the Holy Spirit. He must lay the burden on our heart and on the heart of someone else. We may not even know who that other person is, but we can be praying together.
"Therefore I say unto you, What things soever ye desire, when ye pray, believe that ye receive them, and ye shall have them" (Mark 11:24).