Deut 6:2

לְמַ֨עַן תִּירָ֜א אֶת־יְהוָ֣ה אֱלֹהֶ֗יךָ לִ֠שְׁמֹר אֶת־כָּל־חֻקֹּתָ֣יו וּמִצְוֺתָיו֮ אֲשֶׁ֣ר אָנֹכִ֣י מְצַוֶּךָ֒ אַתָּה֙ וּבִנְךָ֣ וּבֶן־בִּנְךָ֔ כֹּ֖ל יְמֵ֣י חַיֶּ֑יךָ וּלְמַ֖עַן יַאֲרִכֻ֥ן יָמֶֽיךָ׃

so that you and your children and grandchildren may fear the LORD your God all the days of your lives by keeping all His statutes and commandments that I give you, and so that your days may be prolonged.