The first letter in the name Yeshua ("Jesus") is the yod. Yod represents the "Y" sound in Hebrew. Many names in the Bible that begin with yod are mispronounced by English speakers because the yod in these names was transliterated in English Bibles with the letter "J" rather than "Y". This came about because in early English the letter "J" was pronounced the way we pronounce "Y" today. All proper names in the Old Testament were transliterated into English according to their Hebrew pronunciation, but when English pronunciation shifted to what we know today, these transliterations were not altered
The second sound in Yeshua's name is called tse-RE, and is pronounced almost like the letter "e" in the word "net". Just as the "Y" sound of the first letter is mispronounced in today's English, so too the first vowel sound in "Jesus". Before the Hebrew name "Yeshua" was transliterated into English, it was first transliterated into Greek
Unfortunately, later English speakers guessed wrongly that this "e" should be pronounced as in "me," and thus the first syllable of the English version of Yeshua came to be pronounced "Jee" instead of "Yeh". It is this pronunciation which produced such euphemistic profanities as "Gee" and "Geez".
The first sound of the second syllable of Yeshua is the "sh" sound. It is represented by the Hebrew letter shin. However Greek, like many other languages, has no "sh" sound. Instead, the closest approximation, the Greek sigma, was used when transcribing "Yeshua" as "Iesus". Translators of English versions of the New Testament transliterated the Greek transcription of a Hebrew name, instead of returning to the original Hebrew. This was doubly unfortunate, first because the "sh" sound exists in English, and second because in English the "s" sound can shift to the "z" sound, which is what happened in the case of the pronunciation of "Jesus".
The fourth sound one hears in the name Yeshua is the "u" sound, as in the word "true". Like the first three sounds, this also has come to be mispronounced but in this case it is not the fault of the translators. They transcribed this sound accurately, but English is not a phonetic language and "u" can be pronounced in more than one way. At some point the "u" in "Jesus" came to be pronounced as in "cut," and so we say "Jee-zuhs."
The "a" sound, as in the word "father," is the fifth sound in Jesus' name. It is followed by a guttural produced by contracting the lower throat muscles and retracting the tongue root- an unfamiliar task for English speakers. In an exception to the rule, the vowel sound "a" associated with the last letter "ayin" (the guttural) is pronounced before it, not after. While there is no equivalent in English or any other Indo-European language, it is somewhat similar to the last sound in the name of the composer, "Bach." ...There was no letter to represent them, and so these fifth and sixth sounds were dropped from the Greek transcription of "Yeshua," -the transcription from which the English "Jesus" is derived.
So where did the final "s" of "Jesus" come from? Masculine names in Greek ordinarily end with a consonant, usually with an "s" sound, and less frequently with an "n" or "r" sound. In the case of "Iesus," the Greeks added a sigma, the "s" sound, to close the word