1 Samuel 2:34

This shall be a sign unto thee
A confirming one, that all which had been now said would be fulfilled:

that shall come upon thy two sons, Hophni and Phinehas;
which Eli would live to see fulfilled on them; and when it was, he might be assured the rest would be most certainly accomplished, and it was this:

in one day they shall die both of them;
as they did in battle with the Philistines, ( 1 Samuel 4:11 ) .