Well then, here is a sure foundation to build our eternal happiness upon, the word of God, that endures for ever, holds it out to us. All men are building upon something. Every man is about some establishment of his hopes,—lays some foundation of his confidence which he may stand upon. They are one of the two that Christ speaks of, Luke vi. 48, 49; one builds on the rock, another on the sand. Now as the foundation is, so is the house. A changeable foundation makes a falling house, a sure foundation makes an unchangeable house, a house without a foundation will prove quickly no house. Now whatsoever men build their hope and confidence upon,—besides the word of God, his sure promise and sure covenant, and Jesus Christ in them,—they build upon no foundation, or upon a sandy foundation. “All flesh is grass, and the flower and perfection of it is as the flower of the field.” Here is the name and character of all created perfections,—of the most excellent endowments of mind,—of all the specious actions of man it is all but vanishing and vanity! “Every man at his best estate is such, yea, altogether such.” You who have no more to build upon but your prosperity and wealth, O that is but sand and dung! Would any man build a house upon a dunghill? You who have no other hope but in your own good prayers and meanings,—your own reformations and repentances,—your professions and practices—know this, that your hope is like a spider’s house, like the web that she has laboriously exercised herself about all the week over, and then when you lean upon that house it shall fall through, and not sustain your weight. Whatsoever it be, besides this “living stone,” Jesus Christ, who is the very substance of the word and promises, it shall undoubtedly prove thy shame and confusion. But behold the opposition the prophet makes between the word and these other things. “The word of our God shall stand for ever,” Isa. xl. 6-8. And therefore Peter makes it an “incorruptible seed” of which believers are begotten, 1 Peter i. 23. It is the unchangeable truth and immutable faithfulness of God that makes his word so sure, “it is builded up to the heavens.” Therefore the Psalmist often commends the word of the Lord as “a tried word,”—as “purified seven times.” It hath endured the trial and proof of all men,—of all temptations—of all generations. It hath often been put in the furnace of questions and doubtings,—it hath often been tried in the fire of afflictions,—but it came forth like pure gold, without dross. This is faith’s foundation, “God hath spoken in his holiness,” and therefore, though “all men be liars, yet God will be found true, he deceives none, and is deceived of none.” The Lord hath taken a latitude to himself in his working, he loves to show his sovereignty in much of that, and therefore he changes it in men and upon men as he pleaseth. Yet he hath condescended to limit and bound himself by his word, and in this to show his faithfulness.