[ART. XIII.] Every state shall abide by [conform to; agree to] the determinations of the united states in congress assembled, on all questions which by this confederation are submitted to them. And the Articles of this confederation shall be inviolably observed by every state, and the union shall be perpetual; nor shall any alteration at any time hereafter be made in any of them; unless such alteration be agreed to in a congress of the united states, and be afterwards confirmed by the legislatures of every state. And whereas it hath pleased the Great Governor of the World to incline [bend something in a certain direction] the hearts of the legislatures we respectively represent in congress, to approve of, and to authorize us to ratify the said articles of confederation and perpetual union. Know ye that we the undersigned delegates, by virtue of the power and authority to us given for that purpose, do by these presents, in the name and in behalf of our respective constituents, fully and entirely ratify and confirm each and every of the said articles of confederation and perpetual union, and all and singular the matters and things therein contained: And we do further solemnly plight [pledge] and engage the faith of our respective constituents, that they shall abide by the determinations of the united states in congress assembled, on all questions, which by the said confederation are submitted to them. And that the articles thereof shall be inviolably [without failure] observed by the states we respectively represent, and that the union shall be perpetual. In Witness whereof we have hereunto set our hands in Congress. Done at Philadelphia in the state of Pennsylvania the ninth Day of July in the Year of our Lord one Thousand seven Hundred and Seventy-eight, and in the third year of the independence of America.

Determine Central Ideas What did Article XIII say about what would be necessary in order for the Articles of Confederation to have any lasting effect?