1 Chronicles 5:1

The sons of Reuben, Israel’s firstborn – (Now he was the firstborn, but when he defiled his father’s bed, ¹  his rights as firstborn were given to the sons of Joseph, Israel’s son. So Reuben is not listed as firstborn in the genealogical records. ² 

Ge 25:23; Ge 29:32; Ge 35:22; Ge 46:8; Ge 48:15-22; Ge 49:3; Ge 49:4; Ex 6:14; Le 18:8; Le 20:11; Nu 1:5; Nu 16:1; Nu 26:5; De 21:17; De 27:20; Jos 14:6; 1Sa 16:6-11; 1Ch 2:1; 1Ch 26:10; 1Co 5:1; Col 1:15

¹ sn The phrase when he defiled his father’s bed refers to Reuben having sexual relations with his father Jacob’s concubine Bilhah. This incident is recorded in Gen 35:22.

² tn Heb “and not to be listed in the genealogical records as (having) the right of the firstborn.”