If you try to understand His plain Hebrew words you’ll be on your way ;)
Yirmeyah 31:33-34 Orthodox Jewish Bible (OJB)
33 (32) But this shall be the Brit that I will cut with Bais Yisroel [T.N. OJBC is Jewish]; After those days, saith Hashem, I will set My Torah in them inwardly, and I will write ketuvim on their hearts; and I will be their Elohim, and they shall be My People.
34 (33) And they shall teach no more every ish his re’a (neighbor), and every ish his brother, saying, Know Hashem; for they shall all have da’as of Me, from the katon of them unto the gadol of them, saith Hashem; for I will forgive their avon, and I will remember their chattat no more.”
Hashem has to give understanding through his Spirit and his Spirit bridges all languages. Your God is too small!