עַד (ad)

The Hebrew preposition ad indicates a boundary in time or space, translating most commonly as "until," "to," or "up to." It marks the point where one state ends and another begins, functioning both as a simple marker of destination and as a conjunction meaning "until the time that." In the Old Testament, this word appears frequently to define limits, whether describing how far something extends geographically or how long an event continues chronologically.

A notable usage occurs in Daniel, where ad structures key temporal markers in visions. For instance, it defines the duration of authority in Daniel 7:25 and 7:18, specifying that a power would hold sway only "until" judgment arrives. This usage emphasizes the temporary nature of earthly kingdoms against the backdrop of divine sovereignty. The word also appears in Ezra to track the timeline of rebuilding efforts, such as in Ezra 4:21, where it sets the cutoff point for royal decrees.

The term carries a sense of continuity up to a specific endpoint rather than implying permanence beyond that point. While some compounds like le-olam-ad suggest eternity, the core meaning remains focused on the limit itself. Translators typically render ad as "until" or "to," preserving the clear distinction between the ongoing action and its defined conclusion.