Verse 18 is like 115.8, which see. Revised Standard Version, Good News Translation, Bible en français courant, Die Bibel im heutigen Deutsch, and Traduction œcuménique de la Bible translate it here as a wish; but it can be a statement (Good News Translation footnote, New Jerusalem Bible, Bible de Jérusalem, New English Bible, New International Version, Biblia Dios Habla Hoy, New Jerusalem Bible).

Quoted with permission from Bratcher, Robert G. and Reyburn, William D. A Handbook on the Book of Psalms. (UBS Helps for Translators). New York: UBS, 1991. For this and other handbooks for translators see here .