cha.gag denotes celebrating an appointed feast, and in two contexts describes revelry or unsteady staggering.

The predominant use is the observance of a feast directed to the LORD, often for seven days or at an appointed time. One narrative uses the participle of people celebrating over spoil, while Psalm 107:27 places an imperfect form among descriptions of people reeling and staggering; the imperative in Nahum 2:1 is not reflected in the supplied APB clause.

1. Observing a feast · dominant

   The verb occurs in instructions to celebrate a feast to the LORD: Exodus 12:14 has two forms in the memorial-day command, and Leviticus 23:39 places the observance after the gathering of the land's produce. In Zechariah 14:16, the infinitive construct occurs with going up year after year and the feast of booths; the APB renders that clause "to celebrate the feast of booths."

   Exodus 12:14Exodus 23:14Deuteronomy 16:15Leviticus 23:39Numbers 29:12Zechariah 14:16
2. Celebrating over spoil · rare

   In 1 Samuel 30:16, the masculine plural active participle describes the raiders as spread across the land, eating and drinking with the spoil they had taken. The APB renders the accompanying action as "celebrating with the great spoil."

   1 Samuel 30:16
3. Reeling or staggering · rare

   In Psalm 107:27, the third-person masculine plural imperfect stands in the description of people who "reeled and staggered like a drunken man" as their wisdom was swallowed up. This is a distinct movement context rather than an observance of a feast.

   Psalm 107:27

In the Anselm Project Bible: Across the feast instructions, the APB commonly uses "celebrate" or "observe a feast"; in 1 Samuel 30:16 it uses "celebrating," and in Psalm 107:27 it uses "reeled and staggered." These are verse-level renderings rather than definitions, and the supplied APB clause for Nahum 2:1 does not show the imperative's contribution.