And?
Read the rest of the passage.
“16 Samuel said, Why do you consult me, now that the Lord has departed from you and become your enemy? 17 The Lord has done what he predicted through me. The Lord has torn the kingdom out of your hands and given it to one of your neighborsto David. 18 Because you did not obey the Lord or carry out his fierce wrath against the Amalekites, the Lord has done this to you today. 19 The Lord will deliver both Israel and you into the hands of the Philistines, and tomorrow you and your sons will be with me. The Lord will also give the army of Israel into the hands of the Philistines.
I never hear any mention of eternal damnation, only that the kingdom has been torn away from him and his family, as was promised.
Bizarrely enough, I’m not a Calvinist on this topic, and I’m closer to your views in this debate that I butt into.
But Saul is a bad example when discussing salvation.