1 Kings 2:5 records David's deathbed charge about Joab's murders, providing the basis for Solomon's execution order.

1 Kings 2:34 describes Benaiah carrying out the execution, fulfilling Solomon's order from this verse.

1 Kings 2:29 reports Joab fleeing to the tabernacle, prompting Solomon's command to kill him there.

Genesis 9:6 provides the capital punishment mandate — 'by man shall his blood be shed' — directly justifying Joab's execution for shedding innocent blood.

2 Samuel 3:28 shows David's reaction to Joab's murder of Abner, confirming the bloodguilt Solomon now avenges.

Deuteronomy 21:9 concludes that purging innocent blood is doing what is right, which Solomon's execution of Joab accomplishes.

Deuteronomy 19:13 explicitly says to purge the guilt of innocent blood from Israel, mirroring Solomon's phrase 'take away the guilt of innocent blood'.

Deuteronomy 19:12 commands handing over a deliberate murderer to the avenger of blood to die, paralleling Solomon's delivery of Joab to execution.

Numbers 35:33 states that bloodshed pollutes the land and can only be atoned by the murderer's blood, exactly the logic Solomon uses to purge guilt.

Exodus 21:14 mandates removal of deliberate murderers from altar protection, which Solomon cites as reason to execute Joab.

In Genesis 9:5, God establishes the principle of requiring an accounting for bloodshed, which underlies Solomon's action to remove bloodguilt.

2 Samuel 3:29 records David's curse on Joab's household for Abner's murder, which Solomon's execution fulfills.

2 Samuel 11:16 shows Joab's role in Uriah's death, another innocent blood that Solomon's order addresses.

2 Samuel 20:10 records Joab's murder of Amasa, another act of bloodguilt that Solomon's execution avenges.

Deuteronomy 19:10 warns against innocent bloodshed; Solomon's action purges the land of Joab's bloodguilt.

Numbers 35:20 defines murder with hatred, the legal principle justifying the execution of Joab for his malicious killings.

Deuteronomy 21:8 involves a prayer for atonement for unsolved murder; here Solomon actively removes bloodguilt by executing Joab, a different approach to the same problem.

2 Kings 9:26 recounts God avenging Naboth's blood, showing a similar principle of divine retribution for innocent blood that Solomon enacts on Joab.

Proverbs 28:17 describes a murderer tormented by guilt and a fugitive; Joab's guilt led to his execution, illustrating the proverb's truth.