strength
ko.ach denotes the capacity to act, endure, prevail, or accomplish work, whether human, military, or attributed to God.
The supplied verses most often place ko.ach in statements about a person's or group's available capacity for exertion, work, travel, or continued action; it also describes force for conflict or rule and power attributed to God in acts of deliverance, creation, and enabling.
Senses in use
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Capacity for exertion, work, or endurance · dominant
In construct expressions, the noun marks the available capacity behind a person's action: Jacob serves Laban "with all my strength" in Genesis 31:6, and Elijah walks after eating in 1 Kings 19:8. Its absence marks exhaustion in 1 Samuel 30:4, while Ecclesiastes 9:10 directs a person to do the work found by the hand with that available capacity.
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Force or ability to withstand opposition · common
In battle and rule contexts, the singular noun identifies the capacity by which an army, ruler, or kingdom can stand or act. In Daniel 8:7 the ram lacks the capacity to stand before its attacker; in 2 Chronicles 20:12 the people say they have none before the approaching multitude; and Daniel 11:15 likewise speaks of no capacity to stand against the northern king.
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Power attributed to God · common
The noun can be located in God's hand or attached to God's actions. In 1 Chronicles 29:12 it is in God's hand alongside might and is associated with magnifying and strengthening all; Deuteronomy 4:37 and 2 Kings 17:36 place Israel's departure from Egypt in the setting of great power, while Jeremiah 27:5 connects God's great power with making the earth, people, and animals.
In the Anselm Project Bible: Across the cited clauses, the APB commonly presents the context with words such as "strength," "power," and "might," and also describes having none left or being unable to stand. Because the APB is a whole-verse translation, those English choices show the clauses' presentation rather than fixed renderings for each occurrence.