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Having a good understanding of Hebrew, Aramaic and Greek is helpful with understanding some parts of the Bible, but more importantly is understanding the context and entire thrust of the Bible.
Yeshua was a very common name in the Hebrew, translated as Joshua in the OT and Jesus in the NT. Besides Jesus the Christ, we see many other people called both Jesus and Joshua in the OT and NT.
There’s only one Jesus of Nazareth though, and He is the Son of God, the Word became flesh, the only way to God the Father.

Blessings