1 Samuel 2:17, 34

So the sin of the [two] young men [Hophni and Phinehas] was very great before the LORD, for the men treated the offering of the LORD disrespectfully.

This will be the sign to you which shall come concerning your two sons, Hophni and Phinehas: on the same day both of them shall die. [1 Sam 4:17, 18]