1 Samuel 20:28-33 NLT
Jonathan replied, “David earnestly asked me if he could go to Bethlehem. He said, ‘Please let me go, for we are having a family sacrifice. My brother demanded that I be there. So please let me get away to see my brothers.’ That’s why he isn’t here at the king’s table.”
Saul boiled with rage at Jonathan. “You stupid son of a whore!” he swore at him. “Do you think I don’t know that you want him to be king in your place, shaming yourself and your mother? As long as that son of Jesse is alive, you’ll never be king. Now go and get him so I can kill him!”
“But why should he be put to death?” Jonathan asked his father. “What has he done?” Then Saul hurled his spear at Jonathan, intending to kill him. So at last Jonathan realized that his father was really determined to kill David.
NLT: New Living Translation