What you do in your house is worth as much as if you did it up in Heaven for our Lord God. For what we do in our calling here on earth in accordance with His word and command He counts as is were done in heaven for Him… Therefore we should accustom ourselves to think of our position and work as scared and well-pleasing to God, not on its own account, but because of the word and the faith from which our obedience flows. The Man and His Work

The truth of the matter is rather as Christ says, “He who is not with me is against me.”… He does not say “He who is not with me is not against me either, but merely neutral.” The Bondage of Will

If there is anything in us, it is not our own; it is a gift of God. But if it is a gift of God, then it is entirely a debt one owes to love, that is, to the law of Charity. And if it is a debt owed to love, then I must serve others with it, not myself. Luther’s Lectures on Galatians Chapter 5-6

So when the devil throws your sins in your face and declares that you deserve death and hell, tell him this: “I admit that I deserve death and hell, what of it? For I know One who suffered and made satisfaction on my behalf. His name is Jesus Christ, Son of God and where He is there I shall be also” Letters of Spiritual Counsel

This is the most dangerous trial of all, when there is no trial and everything goes well; for then man is tempted to forget God, to become too bold and to misuse times of prosperity. A treatise on Good Works