gag is the upper surface of a house, tower, gate, or structure, used for access, gathering, observation, and activity.

The term most often identifies the roof of a house or other building, a reachable upper area where people walk, gather, watch, mourn, or conduct offerings. A smaller group of construct uses applies to the upper part of a built object or measured structure.

1. Roof as an accessible upper area · dominant

   The singular and plural noun forms identify the upper part of houses, towers, and gates: in Joshua 2:6 the APB renders Rahab's hiding place among flax "upon the roof," while in Judges 9:51 those fleeing the tower go up "on the roof of the tower." The same area is used for David's walk and view in 2 Samuel 11:2, for lament in Isaiah 15:3, and for acts of worship in Zephaniah 1:5.

   Joshua 2:6Judges 9:512 Samuel 11:2Isaiah 15:3Zephaniah 1:5Deuteronomy 22:8
2. Upper part of a constructed object · occasional

   In construct form, the term can identify an object's upper part rather than a place occupied by people. In Exodus 30:3 the APB renders the item being overlaid as "its top," Exodus 37:26 as "its roof," and Ezekiel 40:13 measures from one chamber's roof to another.

   Exodus 30:3Exodus 37:26Ezekiel 40:13

In the Anselm Project Bible: Across the cited verses, the APB commonly presents the term as "roof" or "roofs," while Exodus 30:3 uses "top" and Exodus 37:26 uses "roof" for an object's upper part. These renderings confirm the clauses' settings rather than establish separate English equivalents.