Campegius Vitringa

“When a spiritually sick person on his part engages in good faith to do the things that depend on him, God by His grace will supply what is lacking. He Himself, the sovereign doctor, will do what none of His ministers can do. When the favorable time of His grace has come, He will lay His hand on the wounded and penitent soul. He knows a person’s internal state and is not unaware of any of the soul’s needs. By His Holy Spirit, He reveals to a person his own condition; He enlightens and teaches him what he should do to get out from his spiritual troubles. The consolations that He pours into that person’s soul, like a balm full of sweetness and power, restore health to him little by little. They enable him to recover his strength. As God stirs in that soul the same zealous actions for which it was formerly known, He makes the person run along the paths of the divine precepts with greater ardor than ever. The godly soul expresses itself this way in Psalm 30:2: “I cried to You, LORD, and You healed me.”
― Campegius Vitringa, The Spiritual Life