This reminiscence examines the collaborative process behind Abraham Joshua Heschel's seminal work "Israel: An Echo of Eternity" through the perspective of Judith Herschlag Muffs, who assisted in its creation. Following the Six-Day War, when the Jewish community experienced widespread Christian insensitivity to Israel's existential threats, the Anti-Defamation League commissioned Heschel to articulate Israel's significance to the Jewish people for Christian audiences. The author employed participant observation methodology, working closely with Heschel over several months to document his meticulous writing process and scholarly approach. The study reveals Heschel's extraordinary attention to linguistic precision, his method of crafting individual sentences before weaving them together, and his ability to maintain scholarly focus despite constant interruptions from his extensive social and political commitments. The research demonstrates how Heschel balanced his academic work with his roles as public intellectual and activist, temporarily setting aside his cherished project on the Kotzker Rebbe to address the urgent need for Jewish-Christian dialogue about Israel. The findings illuminate both Heschel's working methods and his commitment to bridging interfaith understanding during a critical period in Jewish-Christian relations, contributing valuable insights into the intersection of scholarship and communal responsibility.