Release of an Oath is the fourth studio album credited to The Electric Prunes, released in 1968. It was composed and arranged by David Axelrod, and band members played little part in its recording. The work follows the musical pattern of their Mass in F Minor, also composed by Axelrod.
The liner notes describe the album as a rock music setting of a service intended to release a penitent from an oath "made under duress and in violation of his principles". It is subtitled "The Kol Nidre - a prayer of antiquity", and is often referred to simply as "The Kol Nidre". The actual Kol Nidre prayer, on which the first track is based, begins the order of service of Yom Kippur in the yearly cycle of Jewish religious observance.
Despite the subtitle and popular name, the remaining tracks of the album are based on a mix of Christian and Jewishliturgies.