From this passage we see that David and Jesus Will Always Do things the right and righteous way, therefore we should never doubt his methods or plans, whatever is going on in the world. David punishes Ish-Bosheth’s murderers, just like the Amalekite, with Capital Punishment, and this displays God and Christ’s holiness and justice.
This biblical concept of complicity is very evident in this chapter, which is why David must absolve himself in justice and why God must execute the justice which His holiness requires.
Some people seem simply incorrigible, they seem hell-bent on evil to the point where they are asking to be killed rather than reform, and capital punishment is actually a mercy to these types of people, before they rack up more guilt in the eyes of God before going to hell, thus making their punishment there worse.
Should we pray for repentance and reform? Absolutely. But we must never believe that we as men, or any society, or prison, or man-made rehabilitation can actually change someone's heart. God alone can, and for that we should pray. But David shows his own righteousness and lack of complicity with the murders in punishing the evil-doers he is now king over.
Jesus also will bring a sword with him when he returns, for in the second coming it will be a time of both mercy and justice (unlike his first coming where he said he came not to judge). The righteous and the wicked alike should be reminded that that day is coming.
In Prayer Today:
Seek the Lord while He may be found, that you may come in under His mercy, not His justice.