וְחָרָ֨ה אַף־יְהוָ֜ה בָּכֶ֗ם וְעָצַ֤ר אֶת־הַשָּׁמַ֙יִם֙ וְלֹֽא־יִהְיֶ֣ה מָטָ֔ר וְהָ֣אֲדָמָ֔ה לֹ֥א תִתֵּ֖ן אֶת־יְבוּלָ֑הּ וַאֲבַדְתֶּ֣ם מְהֵרָ֗ה מֵעַל֙ הָאָ֣רֶץ הַטֹּבָ֔ה אֲשֶׁ֥ר יְהוָ֖ה נֹתֵ֥ן לָכֶֽם׃
여호와께서 너희에게 진노하사 하늘을 닫아 비를 내리지 아니하여 땅으로 소산을 내지 않게 하시므로 너희가 여호와의 주신 아름다운 땅에서 속히 멸망할까 하노라
Mishneh Torah, Reading the Shema
How should care be exercised in enunciation? One should take heed not to sound a letter with a strong Dagesh as if it were without such a Dagesh, nor a letter without a strong Dagesh as though it had such a Dagesh; nor sound a letter with a Sheva mobile as if it were immobile, nor, vice versa, sound a letter with a Sheva immobile as if it were mobile. Hence also, a pause should be made between two words, where the first of the two words ends with the letter with which the one immediately following it begins. For example, in reading the words Bechol levavcha, a pause should be made after the word Bechol, before reading levavcha. The same practice should be observed in the case of Va-avadtem meherah and Hacanaf pesil; so too the zain in tizkeru should be pronounced distinctly. One should dwell on the Daleth in Ehad a sufficiently long interval to enable one to acclaim God as Sovereign in Heaven and on Earth and towards the four cardinal points of the compass. The Heth in Ehad should not be pronounced hurriedly, for then the word would sound Ee had*Not one..