The term 'Hebrew Letter Before Bet' is referring to the letter ALEPH, which is the first letter of the Hebrew alphabet. ALEPH is pronounced 'ah-lef' and is written as a single consonant in the Hebrew language. It is also known as the 'silent letter' because it does not have a sound associated with it. ALEPH is the letter before Bet in the Hebrew alphabet, and is used in many words and names in the Jewish faith.