God's unity and uniqueness
The number one symbolizes God's absolute unity and uniqueness in Jewish and Christian tradition. The Shema prayer declares: "Hear, O Israel! The Lord our God, the Lord is one" (Deut 6:4), and this forms the very foundation of monotheism. Throughout Scripture it is emphasized that God is the only true God, without equal or rival (Isa 45:5). Thus, the number one points not merely to a quantitative count but to God's qualitative uniqueness—his sovereignty, wholeness, and indivisibility. The Hebrew word for "one" in the Shema is 'echad' (אחד). In rabbinic tradition, there is discussion over whether 'echad' denotes an absolute unity or a composite unity. This distinction has become central to the theological dialogue between Judaism and Christianity, especially regarding the doctrine of the Trinity. In Jewish liturgy, the Shema (Deut 6:4–9) is regarded as the most important confession of faith and is recited morning and evening. Tradition holds that the believer should cover their eyes with their hand while reciting the first verse to strengthen concentration on God's unity.*