Once more, brethren, if you cannot find illustrations in natural history, or any of the other histories I have mentioned, _find them anywhere_. Anything that occurs around you, if you have but brains in your head, will be of service to you; but if you are really to interest and profit your congregations, you will need to keep your eyes open, and to use all the powers with which the Lord has endowed you. If you do so, you will find that, in simply walking through the streets, something or other will suggest a passage of Scripture, or will help you, when you have chosen your text, to open it up to the people so as really to arrest their attention, and convey the truth to their minds and hearts. For instance, the snow to-day covered all the ground, and the black soil looked fair and white. It is thus with some men under transient reformations; they look as holy, and as heavenly, and as pure as though they were saints; but when the sun of trial arises, and a little heat of temptation cometh upon them, how soon do they reveal their true blackness, and all their surface goodliness melteth away! The whole world is hung round by God with pictures; and the preacher has only to take them down, one by one, and hold them up before his congregation, and he will be sure to enlist their interest in the subject he is seeking to illustrate. But he must have his own eyes open, or he will not see these pictures. Solomon said, "The wise man's eyes are in his head," and addressing such a man, he wrote, "Let thine eyes look right on, and let thine eyelids look straight before thee." Why does he speak of seeing with the eyelids? I think he means that the eyelids are to shut in what the eyes have perceived. You know that there is all the difference in the world between a man with eyes and one with no eyes. One sits down by a stream, and sees much to interest and instruct him; but another, at the same place, is like the gentleman of whom Wordsworth wrote: A primrose by a river's brim A yellow primrose was to him, And it was nothing more.