The placement of Holocaust remembrance within Nisan - traditionally a month of joy and celebration - exposes deep theological fault lines in modern Jewish identity. At an Israeli training conference, ethnographic observations of Yom Hashoah prayer practices revealed stark tensions between secular and religious approaches to Holocaust commemoration. While Israel's parliament established the 27th of Nisan as Yom Hashoah, the Orthodox Chief Rabbinate advocated for the 10th of Tevet, highlighting fundamental disagreements about how to integrate catastrophic loss into Jewish religious frameworks. Through liturgical analysis and historical examination, this research reveals how the Israeli calendar sequence from Yom Hashoah through Yom Ha'atzma'ut constructs a narrative arc from devastation to national rebirth - one that shifts emphasis from divine salvation to Jewish self-determination, potentially constituting what might be termed "functional deicide." These competing calendrical frameworks ultimately reflect profound existential questions about divine presence, human agency, and theological meaning in post-Holocaust Jewish consciousness, challenging traditional understandings of God's role in Jewish history and survival.