Thus we see how that Israel's eventful history has all along stood connected with the smoking furnace and the burning lamp, here seen in vision by Abram. They are either presented to us in the furnace of affliction, through their own sin, or enjoying the fruits of God's salvation; and even at this moment, when, as has been already observed, they are manifestly in the furnace, we can witness the fulfillment of God's promise, so often repeated, "And unto his son will I give one tribe, that David my servant may have a _lamp_ (margin) always before me in Jerusalem, the city which I have chosen Me to put My name there." (1 Kings xi. 36; xv. 14; 2 Kings viii. 19; Psalm cxxxii. 17.) If it be asked where does this lamp shine now? Not on earth, for Jerusalem, the place of its earthly display, is "trodden down of the Gentiles," but the eye of faith can behold it shining with undimmed lustre "in the true tabernacle," where it will continue to shine "until the fulness of the Gentiles be come in;" and then, when the furnace, seen in this chapter by Israel's great progenitor, shall have been heated to the very highest degree of intensity, when the blood of Israel's tribes shall flow like water round the walls of Jerusalem, even then, shall the blessed lamp come forth from the place where it now shines, and cast its cheering rays upon the dark path of the oppressed and sorrowing remnant, bringing to mind those oft-illustrated words, "O ISRAEL, THOU HAST DESTROYED THYSELF; BUT IN ME IS THY HELP."[3] [3] I would refer the reader to the following scriptures in confirmation of what has been above advanced on the subject of "the lamp."--Ex. xxvii. 20; 2 Sam. xxii. 29; Ps. cxix. 105; Prov. vi. 23; xiii. 9; Isa. lxii. 1. CHAPTERS XVI., XVII. These two chapters give us an account of Abram's effort to obtain the promised seed by hearkening to the voice of his wife, and also of God's mode of teaching him the unprofitableness of such an appeal to the mere energy of nature as that which his effort involved. At the very opening of Abram's course we find his faith put to the test in the matter of the famine, but here we find him tried in quite another way, a way moreover, which involved a far higher exercise of faith and spiritual power. "His own body now dead and the deadness of Sarah's womb;" although, in the main, "he considered them not," must have acted upon his mind to a considerable extent. Now, as in the case of the famine already alluded to, Egypt was at hand, holding out a refuge from anxiety as to present supply, so here, "_an Egyptian maid_,"--one of those maid-servants, doubtless, which Abram had gotten during his sojourn in that evil place--was presented to him as a relief in the time of anxiety touching the promised seed. "_Abram hearkened to the voice of Sarai._"