They prayed for direction from the Lord.
They prayed for Him to confirm their steps.
They prayed as a united congregation.
They prayed before choosing leaders.
They prayed for the presence of the Holy Spirit.
They prayed intercessory prayer for sinners.
They prayed for healing.
They prayed for deliverance.
They prayed for those in prison.
They prayed for the unsaved.
They prayed for their leaders.
They prayed over journeys.
They prayed over partings.
Acts 1:14 All these with one accord were devoting themselves to prayer, together with the women and Mary the mother of Jesus, and his brothers.
Acts 1:24 And they prayed and said, “You, Lord, who know the hearts of all, show which one of these two you have chosen."
Acts 2:42 And they devoted themselves to the apostles' teaching and the fellowship, to the breaking of bread and the prayers.
Acts 4:31 And when they had prayed, the place in which they were gathered together was shaken, and they were all filled with the Holy Spirit and continued to speak the word of God with boldness.
Acts 4:3-6 Therefore, brothers,[b] pick out from among you seven men of good repute, full of the Spirit and of wisdom, whom we will appoint to this duty. 4 But we will devote ourselves to prayer and to the ministry of the word.” 5 And what they said pleased the whole gathering, and they chose Stephen, a man full of faith and of the Holy Spirit, and Philip, and Prochorus, and Nicanor, and Timon, and Parmenas, and Nicolaus, a proselyte of Antioch. 6 These they set before the apostles, and they prayed and laid their hands on them.
Acts 8:14-15 Now when the apostles at Jerusalem heard that Samaria had received the word of God, they sent to them Peter and John, 15 who came down and prayed for them that they might receive the Holy Spirit.
Acts 8:24 And Simon answered, “Pray for me to the Lord, that nothing of what you have said may come upon me.”
Acts 9:11 And the Lord said to him, “Rise and go to the street called Straight, and at the house of Judas look for a man of Tarsus named Saul, for behold, he is praying.
Acts 9:40 But Peter put them all outside, and knelt down and prayed; and turning to the body he said, “Tabitha, arise.” And she opened her eyes, and when she saw Peter she sat up.
Acts 10 - Peter's vision and Cornelius's prayers
Acts 11:5 "I was in the city of Joppa praying, and in a trance I saw a vision, something like a great sheet descending, being let down from heaven by its four corners, and it came down to me."
Acts 12:5 So Peter was kept in prison, but earnest prayer for him was made to God by the church.
Acts 12:12 When he realized this, he went to the house of Mary, the mother of John whose other name was Mark, where many were gathered together and were praying.
Acts 13:3 Then after fasting and praying they laid their hands on them and sent them off.
Acts 14:23 And when they had appointed elders for them in every church, with prayer and fasting they committed them to the Lord in whom they had believed.
Acts 16:13-16 And on the Sabbath day we went outside the gate to the riverside, where we supposed there was a place of prayer, and we sat down and spoke to the women who had come together. 14 One who heard us was a woman named Lydia, from the city of Thyatira, a seller of purple goods, who was a worshiper of God. The Lord opened her heart to pay attention to what was said by Paul. 15 And after she was baptized, and her household as well, she urged us, saying, “If you have judged me to be faithful to the Lord, come to my house and stay.” And she prevailed upon us. 16 As we were going to the place of prayer, we were met by a slave girl who had a spirit of divination and brought her owners much gain by fortune-telling.
Acts 16:25 About midnight Paul and Silas were praying and singing hymns to God, and the prisoners were listening to them.
Acts 20:36 And when he had said these things, he knelt down and prayed with them all.
Acts 21:5 When our days there were ended, we departed and went on our journey, and they all, with wives and children, accompanied us until we were outside the city. And kneeling down on the beach, we prayed.
Acts 28:8 It happened that the father of Publius lay sick with fever and dysentery. And Paul visited him and prayed, and putting his hands on him, healed him.