After Saul had led a military campaign to prevent a disastrous and disgraceful deal with the Ammonites done people thought that those who did not rally being Saul should be executed. See the story of the propised deal between the Ammonites and the people of Jabesh-Gilead in 1 Samuel 11:1-11.
There is murderous intent in this patriotism
Then the people said to Samuel, Who is it that said, Shall Saul reign over us? Bring the men, that we may put them to death.
Saul says what Christ’s disciples need to say.
But Saul said, Not a man shall be put to death this day, for today the Lord has worked salvation in Israel.
Then Samuel said to the people, Come, let us go to Gilgal and there renew the kingdom. So all the people went to Gilgal, and there they made Saul king before the Lord in Gilgal.
There they sacrificed peace offerings before the Lord, and there Saul and all the men of Israel rejoiced greatly. 1 Samuel 11:12-15
No one survives the law or thrives without repentance
Now if our actual treatment of unbelievers is to throw anything at people let us revisit our story that we have been touched by the grace of God.
The source of great rejoicing is still available: Christ the Son of God, Saviour.