וּלְמַ֨עַן תַּאֲרִ֤יכוּ יָמִים֙ עַל־הָ֣אֲדָמָ֔ה אֲשֶׁר֩ נִשְׁבַּ֨ע יְהוָ֧ה לַאֲבֹתֵיכֶ֛ם לָתֵ֥ת לָהֶ֖ם וּלְזַרְעָ֑ם אֶ֛רֶץ זָבַ֥ת חָלָ֖ב וּדְבָֽשׁ׃ (ס)
and that ye may prolong your days upon the land, which the LORD swore unto your fathers to give unto them and to their seed, a land flowing with milk and honey.
Read kabbalistic (mystical) interpretation of Deuteronomy 11:9: and classical mystical sources.