בַּיּ֤וֹם הַהוּא֙ אָקִ֣ים אֶל־עֵלִ֔י אֵ֛ת כָּל־אֲשֶׁ֥ר דִּבַּ֖רְתִּי אֶל־בֵּית֑וֹ הָחֵ֖ל וְכַלֵּֽה׃
In that day I will perform against Eli all that I have spoken concerning his house, from the beginning even unto the end.
Read halakhic rulings (Jewish law) on I Samuel 3:12: and classical halakhic sources.