Jaci Velasquez - On My Knees

In the same way, the Spirit also helps our weaknesses, for we don't know how to pray as we ought. But the Spirit himself makes intercession for us with groanings which can't be uttered.  Romans 8:26 (WEB)

Call to me, and I will answer you, and will show you great things, and difficult, which you don't know.  Jeremiah 33:3 (WEB)

He also spoke a parable to them that they must always pray, and not give up,  Luke 18:1 (WEB)

If my people, who are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then I will hear from heaven, and will forgive their sin, and will heal their land.  2 Chronicles 7:14 (WEB)