כִּֽי־קָר֥וֹב אֵלֶ֛יךָ הַדָּבָ֖ר מְאֹ֑ד בְּפִ֥יךָ וּבִֽלְבָבְךָ֖ לַעֲשֹׂתֽוֹ׃ (ס)
But the word is very nigh unto thee, in thy mouth, and in thy heart, that thou mayest do it.
Read halakhic rulings (Jewish law) on Deuteronomy 30:14: and classical halakhic sources.