Psalms 78:2

"I will open," he says, "in parables My mouth, I will declare propositions from the beginning" [Psalm 78:2]. From what beginning he means, is very evident in the words following. For it is not from the beginning, what time the Heaven and earth were made, nor what time mankind was created in the first man: but what time the congregation that was led out of Egypt; in order that the sense may belong to Asaph, which is interpreted a congregation. But O that He that has said, "I will open in parables My mouth," would also vouchsafe to open our understanding unto them! For if, as He has opened His mouth in parables, He would in like sort open the parables themselves: and as He declares "propositions," He would declare in like sort the expositions thereof, we should not be here toiling: but now so hidden and closed are all things, that even if we are able by His aid to arrive at anything, whereon we may feed to our health, still we must eat the bread in the sweat of our face; and pay the penalty of the ancient sentence [Genesis 3:19] not with the labour of the body only, but also with that of the heart. Let him speak then, and let us hear the parables and propositions.

"I will open my mouth in parables": to you I will open what is closed to the Jews; to you I will open my mouth in parables. "And without a parable," it says, "he did not speak to them"; but to his own disciples he unfolded the parables in private. "I will open my mouth in parables": what I speak to those others outwardly in parables, to you I will open up inwardly. "I will utter propositions from the beginning." In place of "propositions" the Hebrew has "riddles (enigmas)." Therefore everything that is said is a riddle.

I will open my mouth,.... Speak freely, boldly, and without reserve, Eph 6:19, so Christ opened his mouth, Mat 5:2, in a parable; not that what follows in this psalm was such, but what were delivered by our Lord in the days of his flesh, who spake many parables; as of the sower, and of tares, and of the grain of mustard seed, and many others, and without a parable he spake not, and so fulfilled what he here said he would do, Mat 13:

The history itself from Moses to David; it is put into a psalm or song that it might be the better remembered and transmitted to posterity, and that the singing of it might affect them with the things here related, more than they would be with a bare narrative of them.

I will open my mouth in a parable. Analogies are not only to be imagined, but are intended by God to be traced between the story of Israel and the lives of believers. Israel was ordained to be a type; the tribes and their marchings are living allegories traced by the hand of an all wise providence. Unspiritual persons may sneer about fancies and mysticisms, but Paul spake well when he said "which things are an allegory, "and Asaph in the present case spake to the point when he called his narrative "a parable." That such was his meaning is clear from the quotation, "All these things spake Jesus unto the multitude in parables; and without a parable spake he not unto them: that it might be fulfilled which was spoken by the prophet, saying, I will open my mouth in parables; I will utter things which have been kept secret from the foundation of the world." Mt 13:34-35. I will utter dark sayings of old;—enigmas of antiquity, riddles of yore. The mind of the poet prophet was so full of ancient lore that he poured it forth in a copious stream of song, while beneath the gushing flood lay pearls and gems of spiritual truth, capable of enriching those who could dive into the depths and bring them up. The letter of this song is precious, but the inner sense is beyond all price. Whereas the first verse called for attention, the second justifies the demand by hinting that the outer sense conceals an inner and hidden meaning, which only the thoughtful will be able to perceive.