Deuteronomy 20:16 in the King James Version of the Bible reads: "But of the cities of these people, which the Lord thy God doth give thee for an inheritance, thou shalt save alive nothing that breatheth."

This verse is part of a larger passage in the book of Deuteronomy that outlines instructions for the Israelites as they prepare to enter the Promised Land. In this particular verse, Moses is instructing the Israelites regarding the treatment of the inhabitants of the cities they will conquer.

The verse is a stark reminder of the realities of war and the high stakes involved in claiming the land that God had promised to the Israelites. It echoes the sentiment from earlier in the book of Deuteronomy, where the Israelites are warned that they will have to fight for the land and that they must be strong and courageous in order to take possession of it (Deuteronomy 1:21).

The imagery of not sparing anyone that breathes underscores the severity of the situation. In times of war, the Israelites are commanded to show no mercy and to completely annihilate the inhabitants of the cities they conquer. This may seem harsh and difficult to reconcile with modern notions of morality, but it is important to consider the historical and cultural context in which these instructions were given.

At the time these instructions were delivered, the Israelites were a fledgling nation surrounded by powerful and often hostile neighbors. The conquest of Canaan was the means by which they would secure a homeland and establish themselves as a people. Moreover, the inhabitants of the land were often engaged in idolatry and practices that were abhorrent to God, and thus posed a spiritual threat to the Israelites.

The verse in question reflects the harsh realities of ancient warfare, where total victory often necessitated the complete destruction of the opposing people. It also serves as a stark reminder of the seriousness of the covenant between God and the Israelites, and the extent to which they were expected to obey His commands.

From a broader thematic perspective, this verse raises challenging questions about the nature of justice and the moral complexities of war. On one hand, it demonstrates the uncompromising nature of God's justice and the consequences of disobedience. On the other hand, it forces us to confront the difficult ethical questions that arise when considering the implications of wholesale destruction of entire communities.

In a broader theological sense, this verse can be seen as a foreshadowing of the spiritual battle that is a recurring theme throughout the Bible. The conquest of the Promised Land is often used as a metaphor for the believer's ongoing struggle against sin and the forces of spiritual darkness. The command to utterly destroy the inhabitants of the land can be seen as a symbolic representation of the believer's need to rid themselves of anything that opposes God's purposes in their lives.

From a symbolic standpoint, the verse can also be interpreted as a call for radical commitment and devotion to God. The Israelites are being instructed to leave nothing alive that breathes, a directive that can be understood as a metaphor for the need to rid oneself of anything that hinders their relationship with God. This could include the metaphorical "idols" of our lives—whatever takes the place of God as the center of our affections and allegiances.

In conclusion, Deuteronomy 20:16 is a challenging and provocative verse that raises difficult questions about the nature of war, justice, and the believer's relationship with God. It serves as a reminder of the historical and cultural context in which it was given, and the moral complexities of obeying God's commands. It also presents an opportunity for reflection and discussion on the broader theological and ethical implications of this and other challenging passages in the Bible.