(under the rubric of "better late than never")
The honor and integrity of David has impressed me in this text from the first time I heard it in Sunday School. This is not the way man apart from the Spirit works. Revenge! Yet if David had filled Saul's grave, there best be a grave dug for David too. God protects not only our possible victim, but also ourselves, by saying to us, "Vengeance is mine. I will repay." Those seeking vengeance may kill another person's body, but in doing so, they do worse damage to their own soul.
Back to the text at hand - on Monday I saw Christ in this text for the first time, the King of Kings who has us dead to rights. How often is He in our presence and acts without us being aware of it? How often have we sought after the death of the Son of David - and His Father? We have, like Saul, been jealous of Jesse's Son, felt He threatened our power and popularity. And this despite that we have nothing to fear - for He is loyal to us.
And yet He spares our life! More than just slicing off a corner of our garments, He removes from us all the fig leaves and filthy rags of our supposed righteous works. But not so that we would be unclothed, but so that we would be clothed in the flesh of Christ, great David's greater Son.
To Him be all glory and honor, with the Father and the Holy Spirit, now and forever. Amen.