Amen because of his great mercy we can receive his grace according to his perfect law.
It performs that which is appointed to us just as he informs us. Like David said in another psalm ; If God would take into account one transgression suffered against Him who could stand in judgment . Because he does give us His grace we do fear aright so that we can stand in His presence. .
The man without it doing its work in us perishes without it. It does not only inform us it reforms us into new creatures .
Beautiful Psalm below that speaks of all of the work of the faith of Christ as it works in our heart,to both will and do His good pleasuse.
The law of the LORD is perfect, converting the soul: the testimony of the LORDis sure, making wise the simple. The statutes of the LORD are right, rejoicing the heart: the commandment of the LORD is pure, enlightening the eyes. The fear of the LORD is clean, enduring for ever: the judgments of the LORDare true and righteous altogether. More to be desired are they than gold, yea, than much fine gold: sweeter also than honey and the honeycomb. Moreover by them is thy servant warned: and in keeping of them there is great reward. "Who can understand his errors"? cleanse thou me from secret faults. Keep back thy servant also from presumptuous sins; let them not have dominion over me: then shall I be upright, and I shall be innocent from the great transgression. Let the words of my mouth, and the meditation of my heart, be acceptable in thy sight, O LORD, my strength, and my redeemer. Psa 19:7-14