וּמָ֨ל יְהוָ֧ה אֱלֹהֶ֛יךָ אֶת־לְבָבְךָ֖ וְאֶת־לְבַ֣ב זַרְעֶ֑ךָ לְאַהֲבָ֞ה אֶת־יְהוָ֧ה אֱלֹהֶ֛יךָ בְּכָל־לְבָבְךָ֥ וּבְכָל־נַפְשְׁךָ֖ לְמַ֥עַן חַיֶּֽיךָ׃
And the LORD thy God will circumcise thy heart, and the heart of thy seed, to love the LORD thy God with all thy heart, and with all thy soul, that thou mayest live.
Siddur Ashkenaz
Then the LORD your God will open up your heart and the hearts of your offspring