What does 1 Samuel 20:2 mean?

Jonathan said, No way, you’re not going to die. My dad doesn’t do anything, big or small, without telling me first. Why would he hide this from me? It just doesn’t make sense. 1 Samuel 20:2 - Modern Text Bible

(Jonathan can’t believe his father Saul would plot against David without letting him know. He trusts his relationship with his father and thinks David must be mistaken.)