From The Confessions, by Augustine:
Who shall give me the gift of resting in you? Who will grant me this, that you come into my heart and make it drunk, so that I forget my evil deeds (Jer. 44.9) and embrace you, my only Good? What are you to me? Have mercy on me, and let me speak. What, for that matter, am I to you? Why do you command me to love you? And if I do not, why are you moved to anger and threaten me with utter misery? But is my misery any the less, if I fail to love you? Have pity, O Lord! For your own mercies' sake, O Lord my God, tell me what you are to me! Tell my soul: I am your salvation (Ps. 35.3 [Ps. 34.3]). Speak, and let me hear your voice. Bend down to my soul's ear, O Lord; open it, and tell my soul: I am your salvation. I shall run after your voice, and catch you (Phil. 3.12). Do not hide your face from me. Let me die to see it; for if I do not see it, I shall die.
(Book One, 1.5.5)