Violence done by: David and his army

David has been head of army and lead many campaigns against enemies

Saul offered Michal as wife to David, but only if he brings 100 foreskins of Philistines. David killed 200 and brought them to Saul, and then got Michal as wife

Philistines were faighting against Keilah, so David ask God what to do, and God told him to fight Philistnes to save the Keilah people. So David and his 600 people went to fight

David came to land of Philistines and one local king (Achish son of Maok king of Gath) gave him piece of land (Ziklag) where he can live as he was fleeing from Saul. David was secretly killing poeple in souranded cities, leaving no survivors so they cannot tell to local king.

Amalekites captured people and cattle from David's home (Ziklag) when David was away - going to fight with Philistines against Saul - so David persiut Amalekites until he found them and killed them all except 400 men who fled. And he saved his captured people and his wifes too (Ahinoam of Jezreel and Abigail, the widow of Nabal of Carmel)