Notes from Isaiah 38:1-5
When Isaiah went to Hezekiah, who was extremely ill, and told him of his impending death, Hezekiah immediately turned to God. God responded to his prayer, allowing Hezekiah to live another 15 years. If you have a desperate need in your life, bring it to the Lord. In response to fervent prayer, God may change the course of your life, too.
Notes from Acts 1:12, 13
After Christ was taken up into heaven, the disciples immediately returned to Jerusalem and had a prayer meeting. Jesus had said they would be baptized with the Holy Spirit in a few days, so they waited and prayed. When you face a difficult task, an important decision, or a baffling dilemma, don't rush into the work and just hope it comes out the way it should. Instead, make your first step prayer for the Holy Spirit's power and guidance.
Notes from Jonah 2:1ff
This is a prayer of thanksgiving, not a prayer for deliverance. Jonah was simply thankful that he had not drowned. He was delivered in a most spectacular way and was overwhelmed that he had escaped certain death. Even from inside the fish, Jonah's prayer was heard by God. We can pray anywhere and at any time, and God will hear us. Your sin is never too great, your predicament never too difficult, for God.