This is the picture which the Bible gives us of the old world before the flood—a world of men mighty in body and mind, fierce and busy, conquering the world round them, in continual war and turmoil; with all the wild passions of youth, and yet all the cunning and experience of enormous old age; with the strength and the courage of young men to carry out the iniquity of old ones; every one guided only by self-will, having cast off God and conscience, and doing every man that which was right in the sight of his own eyes. And amidst all this, while men, as wise, as old, as strong, as great as himself, whirled away round him in this raging sea of sin, Noah was stedfast; he, at least, knew his way,—“he walked with God, a just man, and perfect in his generations.” To Noah, living in such a world as this, among temptation, and violence, and insult, no doubt, there came this command from God: “The end of all flesh is come before me, for the earth is filled with violence through them, and I will destroy them with the earth. And behold I, even I, do bring a flood of waters upon the earth, to destroy all flesh wherein is the breath of life; but with thee will I establish my covenant, and thou shalt make thee an ark of wood after the fashion which I tell thee; and thou shalt come into the ark, thou and thy family, and of every living thing, two of every sort, male and female, shalt thou bring into the ark, and keep them alive with thee; and take thou of all food that is eaten into the ark, for thee and for them.” What a message, my friends! If we wish to see a little of the greatness of Noah’s faith, conceive such a message coming from God to one of us! Should we believe it—much less act upon it? But _Noah_ believed God, says the Scripture; and “according as God commanded him, so did he.” Now, in whatever way this command came from God to Noah, it is equally wonderful. Some of you, perhaps, will say in your hearts, ‘No! when God spoke to him, how could he help obeying Him?’ But, my friends, ask yourselves seriously,—for, believe me, it is a most important question for the soul and inner life of you and me, and every man—how did Noah know that it was God who spoke to him? It is easy to say God appeared to him; but no man hath seen God at any time. It is easy, again, to say that an angel appeared to him, or that God appeared to him in the form of a man; but still the same question is left to be answered, how did he know that this appearance came from God, and that its words were true? Why should not Noah have said, ‘This was an evil spirit which appeared to me, trying to frighten and ruin me, and stir up all my neighbours to mock me, perhaps to murder me?’ Or, again; suppose that you or I saw some glorious apparition this day, which told us on such and such a day such and such a town will be destroyed, what should _we_ think of it? Should we not say, I must have been dreaming—I must