וְהָיְתָ֣ה עִמּ֔וֹ וְקָ֥רָא ב֖וֹ כָּל־יְמֵ֣י חַיָּ֑יו לְמַ֣עַן יִלְמַ֗ד לְיִרְאָה֙ אֶת־יְהוָ֣ה אֱלֹהָ֔יו לִ֠שְׁמֹר אֶֽת־כָּל־דִּבְרֵ֞י הַתּוֹרָ֥ה הַזֹּ֛את וְאֶת־הַחֻקִּ֥ים הָאֵ֖לֶּה לַעֲשֹׂתָֽם׃
And it shall be with him, and he shall read therein all the days of his life; that he may learn to fear the LORD his God, to keep all the words of this law and these statutes, to do them;
Read halakhic rulings (Jewish law) on Deuteronomy 17:19: and classical halakhic sources.