This prayer, entitled “[Prayer for] Unity,” was published in The Jewish Peace Book for Home and School (1932) under “Section III: Peace Devotions for Jewish Use — Prayers for Peace” on page 100. Following the prayer, Rabbi Cronbach notes the prayer is “from Peace Service, compiled by [the] National Council for the Prevention of War (NCPW).” The prayer reads to me as alternative formulation of the prayer Shfokh Ḥamatkha offered at the traditional pouring of Elijah’s cup before the Pesaḥ seder’s Hallel service.

This prayer for “The Feast of Light and Dedication” by Rabbi Abraham Cronbach is found in his, Prayers of the Jewish Advance (1924), on pages 37-39.