Genesis 35:22 is the account of Reuben sleeping with Bilhah, directly referenced in Jacob's rebuke in Genesis 49:4.

Genesis 29:32 records Reuben's birth and name meaning—contrasting with the disgrace that loses his preeminence here.

Deuteronomy 27:20 pronounces a curse on anyone who lies with his father's wife, exactly the sin Reuben committed.

1 Chronicles 5:1 explicitly states that Reuben lost his birthright because he defiled his father's couch, confirming Genesis 49:4.

James 1:6-8 describes the double-minded as 'unstable in all his ways' — directly paralleling Jacob's description of Reuben as unstable as water.

Leviticus 18:8 explicitly forbids the act Reuben committed—uncovering his father's wife's nakedness—as a law.

2 Samuel 16:21 shows Absalom sleeping with his father's concubines—directly paralleling Reuben's act to claim power.

Ezekiel 22:10 condemns uncovering a father's nakedness—the very sin Reuben committed with Bilhah.

Deuteronomy 33:6 blesses Reuben with survival but few people, reflecting the consequence of losing his birthright preeminence.

2 Peter 2:14 describes false teachers with 'eyes full of adultery' who entice 'unsteady souls', echoing Reuben's instability and sexual sin.