Genesis 37:21 (KJV) says, "And Reuben heard it, and he delivered him out of their hands; and said, Let us not kill him."

This verse is part of the story of Joseph, the favored son of Jacob. The entire chapter 37 of Genesis tells the story of Joseph's brothers' jealousy and his subsequent sale into slavery. The verse specifically focuses on the intervention of Reuben, the eldest son of Jacob, to save Joseph from being killed by his brothers. Reuben suggests that they should not kill Joseph, but instead throw him into a pit, hoping to eventually rescue him.

There are multiple layers of meaning and symbolism in this verse. On a literal level, it depicts the intense jealousy and sibling rivalry that existed among the sons of Jacob. Joseph's brothers envied him for being their father's favorite son and being given a coat of many colors, symbolizing favoritism. Their jealousy ultimately led to the betrayal and attempted murder of their brother.

On a deeper level, this verse speaks to the theme of forgiveness and reconciliation. Despite the brothers' initial malicious intentions towards Joseph, Reuben's intervention shows a glimmer of compassion and conscience. It suggests that even in the darkest moments of betrayal and hatred, there is still the opportunity for redemption and forgiveness. Reuben's choice to spare Joseph's life becomes a pivotal moment in the narrative, paving the way for the future reconciliation between Joseph and his brothers.

The verse also serves as a stark reminder of the consequences of envy and resentment. The brothers' actions demonstrate the destructive power of jealousy, as it leads them to contemplate shedding innocent blood. This mirrors the broader theme of sin and its repercussions in the Bible, highlighting the catastrophic consequences of allowing negative emotions to take control.

Moreover, the act of sparing Joseph's life in this verse foreshadows the ultimate plan of God for Joseph. Despite being sold into slavery, Joseph eventually becomes a powerful figure in Egypt, rising to the position of second in command to Pharaoh. His story is one of resilience, forgiveness, and the providence of God. The intervention of Reuben can be seen as a part of God's plan to bring about Joseph's rise to power and the fulfillment of His purpose for him.

In a broader theological context, this verse is a precursor to the themes of forgiveness and redemption that are central to the Christian faith. It serves as a prelude to the ultimate act of forgiveness and salvation through Jesus Christ, who was also betrayed and led to death by those who envied him.

Overall, Genesis 37:21 is a powerful and complex verse that delves into themes of jealousy, betrayal, forgiveness, and divine providence. It captures the intricate dynamics of human relationships and the enduring message of hope and redemption that is woven throughout the biblical narrative.