Proverbs - In the collection which forms the "Book of Proverbs," only a small portion has been preserved, less certainly than one thousand out of the three. Ecclesiastes, if it is Solomon's, would add between one hundred and two hundred more proverbs. But the great bulk of Solomon's proverbs has perished.
Songs - Of these, Canticles is probably one (marginal reference): Ps. 72; Psalm 127:1-5 may also be of the number. Probably the bulk of Solomon's songs were of a secular character, and consequently were not introduced into the canon of Scripture.

He spake three thousand proverbs - The book of Proverbs, attributed to Solomon, contain only about nine hundred or nine hundred and twenty-three distinct proverbs; and if we grant with some that the first nine chapters are not the work of Solomon, then all that can be attributed to him is only about six hundred and fifty.
Of all his one thousand and five songs or poems we have only one, the book of Song of Solomon, remaining, unless we include Psalm 127:1-5, Except the Lord build the house, etc., which in the title is said to be by or for him, though it appears more properly to be a psalm of direction, left him by his father David, relative to the building of the temple.

And he spake three thousand (m) proverbs: and his songs were a thousand and five.
(m) Which for the most part are thought to have perished in the captivity of Babylon.

And he spake three thousand proverbs,.... Wise sayings, short and pithy sentences, instructive in morality and civil life; these were not written as the book of Proverbs, but spoken only, and were taken from his lips, and spread by those that heard them for the use of others, but in process of time were lost; whereas the above book, being written under divine inspiration, is preserved: and
his songs were a thousand and five; some things that were useful to improve the minds and morals of men he delivered in verse, to make them more pleasant and agreeable, that they might be the more easily received and retained in memory; but of all his songs, the most: excellent is the book of Canticles, called "the Song of Songs", being divine and spiritual, and dictated by the inspiration of the Spirit of God: he was both a moral philosopher and poet, as well as a botanist and naturalist, and well-skilled in medicine, as the following words suggest, 1-Kings 4:33.

he spake three thousand proverbs--embodying his moral sentiments and sage observations on human life and character.
songs . . . a thousand and five-- Psalm 72, 127, 132, and the Song of Songs are his.

"He spoke three thousand proverbs, and there were a thousand and five of his songs." Of these proverbs we possess a comparatively small portion in the book of Proverbs, probably a selection of the best of his proverbs; but of the songs, besides the Song of Songs, we have only two psalms, viz., Ps 72 and Psalm 127:1-5, which have his name, and justly bear it.

Proverbs - That is, short, and deep, and useful sentences, whereof a great part are contained in the books of Proverbs and Ecclesiastes. Songs - Whereof the chief and most divine are in the Canticles.