Humility, inability and grace

God has promised certainly his grace to the humbled: that is, to the self-deploring and despairing. But a man cannot be thoroughly humbled, until he comes to know that his salvation is utterly beyond his own powers, counsel, endeavours, will and works, and absolutely depending on the will, counsel, pleasure and work of another, that is, of God only.

Martin Luther

The Bondage of the Will