A common mode of comparison in the book of Proverbs is simply to put together the object compared and the thing or things with which it is compared, thus: "A whip for the horse, a bridle for the ass, and a rod for the fool's back" (chap. 26:3); that is, As a whip is appropriate for, the horse, and a bridle for the ass, so is a rod for the fool's back. Again, "Where there is no wood the fire goeth out, and where there is no tale-bearer the strife ceaseth" (Prov. 26:20); "Charcoal to live coals, and wood to fire; and a man of strife to kindle strife" (Prov. 26: 21); "Silver dross spread over an earthen sherd—burning lips [lips glowing with professions of love] and a wicked heart" (Prov. 26: 23); in all which cases our version has supplied particles of comparison.
(2.) An allegory is the narrative of a spiritual transaction under the figure of something lower and earthly, the lower transaction representing directly the higher. We have in the eightieth Psalm an exquisite example of the allegory: "Thou hast brought a vine out of Egypt: thou hast cast out the heathen and planted it. Thou preparedst room before it, and didst cause it to take deep root, and it filled the land. The hills were covered with the shadow of it," etc. (ver. 8-16); where the transfer of the Israelitish people from Egypt to the land of Canaan, with their subsequent history, is described under the figure of a vine.
The metaphor and allegory have this in common, that the foundation of both is resemblance, and in both the lower object is put directly for the higher. Yet the metaphor cannot be properly called a condensed allegory, nor the allegory an extended metaphor; for it is essential to the allegory that it have the form of a narrative, and that it contain real history—in the case of prophecy it may be future history—under a figure. Hence it admits of indefinite extension, as in the "Pilgrim's Progress;" and we may add the Canticles, which the Christian church from the earliest times has regarded as an allegory of which the subject is, in Old Testament language, God and his covenant people, but, according to the representation of the New Testament, Christ and his church.
We must carefully distinguish between true allegory and the allegorical or mystical application of real history. In the former case it is not the literal meaning, but the higher sense represented by it, which constitutes the historic truth. God, for example, never transferred a vine from Egypt to Palestine, but he did the covenant people. The story of Sarai and Hagar, on the contrary (Gen., chap. 16), is true history. The apostle Paul makes an allegorical application of it to the two covenants, that on Sinai and that in Christ, which is very beautiful and appropriate; yet the story itself is not allegory, but plain history. See further, in Chap. 37, No. 4.
(3.) A parable is the narrative of a supposed event for the purpose of illustrating a spiritual truth or principle. The office of the narrative is to embody the principle. It should, therefore, be natural and probable; but its literal truth is of no consequence. In our Lord's parable of the unjust steward, for example (Luke 16:1-9), the incidents of the narrative may or may not have been historically true; but either way the great principle which it illustrates (ver. 10) remains the same.
Allegories and parables pass into each other by insensible degrees. Some of our Lord's so-called parables are rather allegories; as that of the vineyard let out to husbandmen (Matt. 21:33-41), which is founded on the beautiful allegory of Isaiah (chap. 5:1-7); so also that of the good shepherd (John 10:1-18). In their pure form, however, the allegory and the parable are easily distinguished from each other. In the allegory, the figure represents directly the higher transaction. Hence the incidents introduced in the figure—at least all the main incidents—must have something corresponding to them in the spiritual transaction which the figure represents. The case of the parable is different. Here the spiritual truth is not directly described in terms of the figure, but simply illustrated from it. The incidents and characters of the story are separable from the general principle which it inculcates, and are sometimes formally separated by the speaker himself; as when our Lord says: "The kingdom of heaven is likened unto a man which sowed good seed in his field," etc. Matt. 13:24. For this reason they may belong more or less to the mere drapery of the parable, so that to press them in its interpretation would lead to error instead of truth. See further below, No. 7.
(4.) The fable is related to the parable, but it differs from it in two respects. First, it moves in a worldly sphere, having to do with prudential maxims rather than spiritual truth. Secondly, it allows, in harmony with this its lower nature, irrational objects as speakers and actors, which would be contrary to the dignity of the parable. Our Lord never employed fables as vehicles of instruction. There are two examples of them in the Old Testament; neither of them, however, coming from the lips of prophetical men. The first is that of Jotham: "The trees went forth on a time to anoint a king over them; and they said unto the olive-tree, Reign thou over us," etc. Judg. 9:8-15. The second is that of Jehoash: "The thistle that was in Lebanon sent to the cedar that was in Lebanon, saying, Give thy daughter to my son to wife: and there passed by a wild beast that was in Lebanon, and trode down the thistle." 2 Kings 14:9.
(5.) A symbol is a material object, a transaction in the material world, or sometimes a number, to represent some higher spiritual truth. Ritual symbols, like the ark of the covenant, the high-priest's dress, the sacrifices, and, in general, the whole tabernacle and temple service, will be considered hereafter under the head of types. We speak of symbols now, only so far as they belong to the human side of interpretation. We have a beautiful example of a symbolic transaction in the seventeenth chapter of the book of Numbers, where the princes of Israel, by God's direction, take twelve rods, write each man his name upon his rod, and lay them up in the tabernacle before the Lord, whereupon Aaron's rod "budded, and brought forth buds, and blossomed blossoms, and yielded almonds;" a symbol that God would make the priesthood to flourish in his family.
Scriptural symbols exhibit a wonderful variety. Sometimes they are seen in dreams, as in Jacob's dream of a ladder reaching to heaven (Gen. 28:12-15); Pharaoh's two dreams of the fat and lean kine, and the good and thin ears (Gen. 41:1-7); or in prophetic vision, like Jeremiah's vision of a seething pot with the face towards the north (Jer. 1:13); Ezekiel's vision of the cherubim (chap. 1); and Amos' vision of a basket of summer fruit (chap. 8:2). At other times they are actual transactions. So the false prophet Zedekiah "made him horns of iron: and he said, Thus saith the Lord, with these shalt thou push the Syrians till thou have consumed them" (1 Kings 22:11); the true prophet Jeremiah wore a yoke upon his neck as a sign that God would subject the nations to Nebuchadnezzar's power, and the false prophet Hananiah broke it, that he might thus signify the deliverance of the people from Nebuchadnezzar's rule. Jer. 27:1-8, compared with 28:10, 11.