51 The family of Reuben the firstborn of Israel: Though Reuben was Israel's firstborn, after he slept with his father's concubine, a defiling act, his rights as the firstborn were passed on to the sons of Joseph son of Israel. He lost his "firstborn" place in the family tree.
Matthew Henry's Commentary on 1 Chronicles 5:1
Chapter Contents
Genealogies.
This chapter gives some account of the two tribes and a half seated on the east side of Jordan. They were made captives by the king of Assyria, because they had forsaken the Lord. Only two things are here recorded concerning these tribes. 1. They all shared in a victory. Happy is that people who live in harmony together, who assist each other against the common enemies of their souls, trusting in the Lord, and calling upon him. 2. They shared in captivity. They would have the best land, not considering that it lay most exposed. The desire of earthly objects draws to a distance from God's ordinances, and prepares men for destruction.