"It may seem ungrateful that I write to you just now in this strain, and in a letter which should be all thanks; but it is as I feel at present, and we are far too intimate with each other for me to attempt to hide from you my present mood. You know, don't you, that I am not ungrateful? But I have felt very strongly of late that I need and long for an external impulse to urge me on; no recognition of work done can come up to that; it gives me great pleasure, but it has not the stimulating effect upon me which a suggestion for new work would have." [Footnote 2: The proposed performance of "St. Paul" at the Liverpool Musical Festival, where it was given for the first time in England, under the direction of Sir George Smart, October 7, 1836.] This letter, which discloses an article of Mendelssohn's artistic creed, is important, because it contains the earliest known reference to the oratorio of "Elijah." The date should be carefully noted, as it shows that Mendelssohn was engaged, more or less, upon his great oratorio for a period of more than ten years before it was given to the world in its finished and published form. Klingemann does not seem to have been taken with his friend's proposal that he should compile an oratorio libretto, even upon so original a subject for musical treatment as "Og of Bashan." The following letter, written a few weeks before the composer's marriage, contains a request for the "text" of an oratorio as a wedding present--surely a novelty in the way of a nuptial gift. [MENDELSSOHN TO KLINGEMANN.] "LEIPZIG, _February_ 18, 1837. "... Here comes my request. Do write for me within the next few weeks the text for a Biblical oratorio, so that I can set to and compose it during next summer. The last time we talked about it I mentioned to you two subjects which I like equally well--'St. Peter' or 'Elijah.' What I would like best would be for you to take 'Elijah'--divide the story into two or three parts, write it out in choruses and airs, either in verse or prose of your own; or, compile it from the Psalms and Prophets, with powerful big choruses, and then send it to me. The translation of Handel's oratorios gave you so little trouble that I think you will only require a few evenings, and the will to give them up to it, and my 'text' will be written. You may let it be dramatic like 'Judas Maccabæus,' or epic, or both combined. I am satisfied with anything you do. You need not ask my advice, but just write out what you think best. Then I can compose it at once.