Job 5:8

in order to which it is proper the "heart [should be] prepared"; as it is requisite it should be to every good work by the grace of God so to this: and then may it be said to be prepared for such service, when the spirit of God is given as a spirit of grace and supplication, whereby the heart is impressed with a sense of its wants, and so knows what to pray for; and arguments and fit words are put into the mind and mouth, and it knows how to pray as it should; and is enabled to approach the throne of grace with sincerity, fervency, and in the exercise of faith, being sprinkled from an evil conscience by the blood of Jesus, and resigned to the divine will, in all its petitions it is directed to make: now this is the work of God, to prepare the heart; the preparation of the heart, as well as the answer of the tongue, is from the Lord; he is prayed to for it, and it is affirmed he will do it, Pr 16:1; but it is here represented as if it was man's act, which is said not to suggest any power in man to do it of himself; at least this is not the evangelic sense of such phrases; for Zophar might be of a more legal spirit, and not so thoroughly acquainted with the evangelic style; but this might be said, to show the necessity of such a preparation, and to stir up to a concern for it, and to expect and look for it from and by the grace of God.