O Lord, Fill My Empty Cup

Luther on the empty needing filling:

Look, Lord, an empty vessel that needs to be filled. My Lord, fill it. I am weak in the faith; strengthen me. I am cold in love; warm me and make me fervent, that my love may go out to my neighbor. I do not have a strong and firm faith. At times I doubt and am unable to trust you completely. O Lord, help me. Strengthen my faith and trust in you. I have insured all my treasure in your name. I am poor; you are rich and you did come to be merciful to the poor. I am a sinner; you are upright. With me there is an abundance of sin; with you a fullness of righteousness. Therefore I will remain with you, from whom I can receive but to whom I may not give. Amen.

 —Martin Luther, Luther's Prayers (ed. Herbert F. Brokering; Augsberg: Minneapolis, 1994), 67-68.