Luther on Noah

"Nor must we trust in holiness of origin, in forefathers, or in the gifts of God which we enjoy. We must look to the Word alone and judge thereby. Those alone who truly embrace the Word will be as immovable forever as Mount Zion. They may be few in number and thoroughly despised by the world, as were Noah and his children. But God, through these few, preserved to man the truth of that promised mastery when he had not even room to set his foot upon the earth...

Let us say with Noah: I know that I am righteous before God, even though the whole world condemn me as heretical and wicked, yea, even desert me. Thus did the apostles desert Christ, leaving him alone; but he said (Jn 16, 32): "I am not alone." Thus did the false brethren desert Paul. Hence, this is no uncommon danger, and it is not for us to despair; but with courage to uphold the true doctrine, in spite of the world's condemnation and curse." - Luther's Commentary on Genesis 6