The answer is: Numbered Israel

2 Sam 24:10-16

When King David decided to number the fighting men of Israel, it resulted in a divine displeasure that led to a calamity introduced by an angel. This event provides rich commentary on the importance of trust in divine providence over reliance on human strength. By numbering his troops, David exhibited a lapse in faith, as he seemed to believe that victory depended on sheer numbers instead of the support of God. It echoes a familiar idea found throughout the scriptures: it's not the size of your army, but the strength of your relationship with the divine that matters!

The mighty warrior Gideon, for example, defeated the Midianites with only 300 men, showing that God can achieve victories in unexpected ways. Additionally, this episode serves to highlight the fragility of human judgment, reminding us of the recurring theme of humility that's woven through much of biblical narrative.

As for the angelic aspect, the scriptures often depict angels as divine messengers tied closely to the Israelite fate. God’s use of an angel to enact judgment brings to light the connection between heaven and earth, and the balance of faith and judgement within an intricate framework of authority. The lasting effects of this event and its aftermath resulted in David's deep regret and led him to seek mercy from God—a collaboration between grace and accountability that’s at the core of many biblical stories. So even amidst conflict, God offers paths of reflection and redemption.