Solomon's reputation for wisdom made his name a magnet for a whole tradition of writing. Biblical and later books were attributed to him, the book of Proverbs, Ecclesiastes (whose narrator presents himself as a king in Jerusalem), and the Song of Songs, as well as, in the Greek scriptures, the Wisdom of Solomon, and among the pseudepigrapha the Psalms and Odes and Testament of Solomon.
Modern scholarship regards these attributions as largely pseudonymous: the ascription to Solomon is a literary convention that lends the authority of the wise king to works composed, in several cases, centuries after him. Ecclesiastes and the Wisdom of Solomon in particular are dated by their language and thought to the later Second Temple period.
The effect was to make Solomon a byword for wisdom across Judaism, Christianity and Islam, and to gather under his name a body of reflection on justice, mortality, love and the limits of human knowledge far larger than any single reign could have produced. In this sense the literary Solomon outgrew the king: he became the patron figure of the entire biblical wisdom tradition, invoked wherever the scriptures turn from law and narrative to the counsel of experience.