Prayer - When they heard this, they raised their voices together in prayer to God. "Sovereign Lord," they said, "you made the heaven and the earth and the sea, and everything in them. You spoke by the Holy Spirit through the mouth of your servant, our father David: "'Why do the nations rage and the peoples plot in vain? The kings of the earth take their stand and the rulers gather together against the Lord and against his Anointed One.' Indeed Herod and Pontius Pilate met together with the Gentiles and the people of Israel in this city to conspire against your holy servant Jesus, whom you anointed. They did what your power and will had decided beforehand should happen. Now, Lord, consider their threats and enable your servants to speak your word with great boldness. Stretch out your hand to heal and perform miraculous signs and wonders through the name of your holy servant Jesus." (Acts 4:24-30)

"And when you pray, do not be like the hypocrites, for they love to pray standing in the synagogues and on the street corners to be seen by men. I tell you the truth, they have received their reward in full. 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. And when you pray, do not keep on babbling like pagans, for they think they will be heard because of their many words. Do not be like them, for your Father knows what you need before you ask him. "This, then, is how you should pray: "'Our Father in heaven, hallowed be your name, your kingdom come, your will be done on earth as it is in heaven. Give us today our daily bread. Forgive us our debts, as we also have forgiven our debtors. And lead us not into temptation, but deliver us from the evil one.' For if you forgive men when they sin against you, your heavenly Father will also forgive you. (Matthew 6:5-14)

If you believe, you will receive whatever you ask for in prayer." (Matthew 21:22)

A man in the crowd answered, "Teacher, I brought you my son, who is possessed by a spirit that has robbed him of speech. Whenever it seizes him, it throws him to the ground. He foams at the mouth, gnashes his teeth and becomes rigid. I asked your disciples to drive out the spirit, but they could not." "O unbelieving generation," Jesus replied, "how long shall I stay with you? How long shall I put up with you? Bring the boy to me." So they brought him. When the spirit saw Jesus, it immediately threw the boy into a convulsion. He fell to the ground and rolled around, foaming at the mouth. Jesus asked the boy's father, "How long has he been like this?" "From childhood," he answered. "It has often thrown him into fire or water to kill him. But if you can do anything, take pity on us and help us." "'If you can'?" said Jesus. "Everything is possible for him who believes." Immediately the boy's father exclaimed, "I do believe; help me overcome my unbelief!" When Jesus saw that a crowd was running to the scene, he rebuked the evil spirit. "You deaf and mute spirit," he said, "I command you, come out of him and never enter him again." The spirit shrieked, convulsed him violently and came out. The boy looked so much like a corpse that many said, "He's dead." But Jesus took him by the hand and lifted him to his feet, and he stood up. After Jesus had gone indoors, his disciples asked him privately, "Why couldn't we drive it out?" He replied, "This kind can come out only by prayer." (Mark 9:17-29)