### Core Meaning & Semantic Range
The Hebrew word **rebaʻ**, represented by `{{H7252}}`, denotes **prostration (for sleep)** or **lying down**. This is a very specific and rare term, appearing only **1 time** in the entire Bible, within a single verse. Its significance is derived entirely from this unique context, where it describes a state of rest under divine observation.
### Biblical Occurrences & Contextual Analysis
The sole appearance of `{{H7252}}` is in [[Psalms 139:3]], which states, "Thou compassest my path and my **lying down**, and art acquainted with all my ways." In this verse, the word is used to contrast with a person's "path," or active life. It illustrates the comprehensive nature of God's knowledge, which extends not only to a person's public actions and journeys but also to their most private and vulnerable moments of rest.
### Related Words & Concepts
The meaning of `{{H7252}}` is further illuminated by the words surrounding it in its only biblical context:
* `{{H734}}` **ʼôrach** (path): Defined as "a well-trodden road," this word is used figuratively in [[Psalms 139:3]] to represent a person's daily activities and life course. It stands in direct contrast to the stillness implied by **rebaʻ**.
* `{{H2219}}` **zârâh** (compassest): While its primary meaning is "to toss about" or "scatter," in this context it conveys an intensive examination, as if God is sifting through or thoroughly investigating every aspect of one's path and rest.
* `{{H5532}}` **çâkan** (acquainted): Meaning "to be familiar with," this word describes the result of God's constant observation. He is not a distant observer but is intimately familiar with every detail of a person's existence.
* `{{H1870}}` **derek** (ways): Similar to path, this word refers to a "course of life or mode of action." Its use at the end of the verse summarizes the totality of a person's life, which is fully known to God.
### Theological Significance
The theological weight of `{{H7252}}` is tied directly to the doctrine of God's omniscience.
* **Comprehensive Awareness:** By pairing "path" `{{H734}}` with "**lying down**" `{{H7252}}`, the Psalmist creates a merism to express a whole concept. God knows everything about a person, from their most active moments to their most passive ones.
* **Intimate Knowledge:** The term highlights that no state is hidden from God. Even in the vulnerability of sleep or prostration, a person is fully seen and understood by their Creator.
* **Constant Scrutiny:** The action of being "compassed" `{{H2219}}` applies equally to both activity and rest, showing that God's watchfulness is ceaseless and covers the entirety of human experience, leaving no part of life unexamined.
### Summary
In summary, while **rebaʻ** `{{H7252}}` is an extremely rare word, its singular use in scripture is powerful. It functions as a key component in one of the Bible's most profound statements on divine omniscience. By signifying "lying down," it completes the picture of a life lived entirely in the presence of God, emphasizing that His knowledge is not limited to our waking actions but encompasses every moment of our existence.