The answer is: Samuel

1 Samuel 15:32-33 - Samuel completed the job that Saul failed to do

The story of Agag and Samuel is a pivotal moment in the book of 1 Samuel, highlighting themes of divine justice and the importance of obedience. Agag, the king of the Amalekites, represents the remnants of Israel’s enemies, and God gave Saul a clear directive to eradicate them. However, Saul's failure to follow through reflected a dangerous tendency to prioritize personal judgment over divine instruction.

Enter Samuel, the prophet and judge, who steps up to complete God’s command—a compelling echo of the theme of prophetic authority in the Bible. Although it may seem brutal to modern readers, this event serves as an illustration of the ancient context in which these narratives were written, underscoring the seriousness of relationships between Israel and its neighbors.

Interestingly, the word “Amalekite” resurfaces throughout the Hebrew Scriptures, symbolizing a relentless challenge to Israel’s identity and mission. In Jewish tradition, the Amalekites have become symbolic of evil that must be opposed, representing more than just a single tribe—it extends to the idea of opposing immorality and injustice.

Furthermore, Samuel's act of slaying Agag signifies that true leadership often includes taking responsibility for tough decisions that align with righteous paths. This willingness may still resonate today in various forms of leadership where moral clarity is required to confront wrongdoing. It’s a reminder that decisive action is sometimes vital for the sake of collective well-being, be it in personal choices or community ethics.