Matthew 17:21
Howbeit this kind goeth not out, but by prayer and fasting.
Mark 9:29
And he said to them, This kind can come forth by nothing but by prayer and fasting.
Matthew 12:45
Then goeth he and taketh with him seven other spirits more wicked than himself, and they enter in and dwell there, and the last state of that man is worse than the first. So shall it be also to this wicked generation.
Acts 13:2-3
And as they were ministring to the Lord and fasting, the Holy Ghost said, Separate me Barnabas and Saul, for the work to which I have called them.
Acts 14:23
And when they had ordained them presbyters in every church, and had prayed with fasting, they commended them to the Lord, on whom they had believed.
1 Corinthians 7:5
Withdraw not from each other, unless it be by consent for a time, that ye may give yourselves to prayer, and may come together again, lest Satan tempt you through your incontinence.
2 Corinthians 11:27
In labour and toil, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.
Ephesians 6:18
which is the word of God, Praying alway by the Spirit with all prayer and supplication, and watching thereunto with all perseverance and supplication for all the saints,