“We may be sure of this, and we must pray in the assurance of it, in a full assurance of his faith, that wherever God finds a praying heart, he will be found a prayer-hearing God; though the voice of prayer be a low voice, a weak voice, yet if it come from an upright heart, it is a voice that God will hear, that he will hear with pleasure, it is his delight, and hay he will return a gracious answer to; he hath heard thy prayers, he hath seen thy tears. When therefore we stand praying, this ground we must stand upon, this principle we must stand to, nothing doubting, nothing wavering, that whatever we ask of God as a father, in the name of Jesus Christ the Mediator, according to the will of God revealed in the Scripture, it shall be granted us either in kind or kindness; so the promise is, John 16:23, and the truth of it is sealed to by the concurring experience of the saints in all ages, ever since men began to call upon the name of the Lord, that Jacob's God never yet said to Jacob's seed, seek he me in vain, and he will not begin now. When we come to God by prayer, if we come aright we may be confident of this, that notwithstanding the distance between heaven and earth, and our great unworthiness to have any notice taken of us, or any favour showed us; yet God doth hear our voice, and will not turn away our prayers or his mercy.”
Henry's well-known Exposition of the Old and New Testaments (1708-1710) is a commentary of a practical and devotional rather than of a critical kind, covering the whole of the Old Testament, and the Gospels and Acts in the New Testament. After the author's death, the work was finished by a number of ministers, and edited by George Burder and John Hughes in 1811. Not a work of textual criticism, its attempt at good sense, discrimination, its high moral tone and simple piety with practical application, combined with the well-sustained flow of its English style, made it one of the most popular works of its type. Matthew Henry's six volume Complete Commentary, originally published in 1706, provides an exhaustive verse by verse study of the Bible. His commentaries are still in use to this day.