John Trapp on Matthew 21:22

Verse 22. What soever ye shall ask in prayer, beleeving] Faith is the foundation of prayer, and prayer is the fervencie of faith. Cast thy burden upon the Lord, or thy request, thy gift upon the Lord. Psal. 55. 22. that is, whatsoever thou desirest that God should give thee in prayer, cast it upon him by faith, and it shall be effected. Fidei mendica manus. Faith and prayer are the soules two hands, whereby she begs and receives of God all good things both for this and a better life. Hence of old when the Saints praid they spred out the palmes of their hands, as to receive a blessing from God, 1 Kings 8. 22. Exodus 9. 29. Psalm 143. 6.