1 Samuel 2:34

2:34 This will be a confirming sign for you that will be fulfilled through your two sons, ¹  Hophni and Phinehas: in a single day they both will die!

1 Samuel 14:10

14:10 But if they say, ‘Come up against us,’ we will go up. For in that case the Lord has given them into our hand – it will be a sign to us.”

¹ tn Heb “and this to you [is] the sign which will come to both of your sons.”