Prayer, in many ways, is the supreme expression of our faith in God and our faith and confidence in the promises of God. There is nothing that a man ever does which so proclaims his faith as when he gets down on his knees and looks to God and talks to God. It is a tremendous confession of faith. I mean by this that he is not just running with his requests and petitions, but if he really waits upon God, if he really looks to God, he is there saying, ‘Yes, I believe it all, I believe that you are a rewarder of them that diligently seek you, I believe you are the Creator of all things and all things are in your hands. I know there is nothing outside of your control. I come to you because you are in all this and I find peace and rest and quiet in your holy presence and I am praying to you because you are what you are.’ That is the whole approach to prayer that you find in the teaching of Scripture.
~Martyn Lloyd-Jones~
The Assurance of Our Salvation (Wheaton, IL; Crossway Books; 2000) p. 35
The Old Guys 
Matthew Henry – The Inexhaustible Fullness of Grace and Mercy in God
10 AprNow to him who is able to do far more abundantly than all that we ask or think, according to the power at work within us, 21 to him be glory in the church and in Christ Jesus throughout all generations, forever and ever. Amen. – Ephesians 3:20-21
There is an inexhaustible fulness of grace and mercy in God, which the prayers of all the saints can never draw dry. Whatever we may ask, or think to ask, still God is still able to do more, abundantly more, exceedingly abundantly more. Open thy mouth ever so wide, still he hath wherewithal to fill it. Note, In our applications to God we should encourage our faith by a consideration of his all-sufficiency and almighty power.
~Matthew Henry~
Matthew Henry’s Commentary on the Whole Bible (Spokane, WA; Olive Tree Bible Software) Commentary on Ephesians 3:20-21
Books by Matthew Henry
Tags: Matthew Henry, Matthew Henry's Commentary on the Whole Bible