The Articles of Confederation were articles written by Congress during the Revolutionary War. They failed because they put too much power on the people and the states, therefore not giving Congress and the central government enough power. Afterwards, the constitution was created.
Job, Psalms, Proverbs and the Song of Solomon
sources:
http://www.angelfire.com/sc3/we_dig_montana/Poetry.html
https://bible.org/seriespage/5-poetical-books