1 Samuel 2:34

this shall be a sign unto thee The immediate fulfilment of one prediction will serve as a sign or assurance that the rest will not fail to come to pass. Such signs were often given by prophets as the credentials of their mission. Cp. ch. 1Sa 10:7-9; 1 Kings 13:3; 2 Kings 20:8-9; Luke 1:18; Luke 1:20.

in one day they shall die See ch. 1 Samuel 4:11.