But this will be a sign to you, which will happen to your two sons, Hophni and Phinehas: on one day they both will die
Other versions
King James Version
And this shall be a sign unto thee, that shall come upon thy two sons, on Hophni and Phinehas; in one day they shall die both of them.English Standard Version
And this that shall come upon your two sons, Hophni and Phinehas, shall be the sign to you: both of them shall die on the same day.New International Version
"'And what happens to your two sons, Hophni and Phinehas, will be a sign to you-they will both die on the same day.