I would like to suggest another layer of meaning on Affable Geek's answer. This requires a little set up, so bear with me.
In Exodus 20, God thunders from Mount Sinai and begins the Ten Words (or Commandments) with, "I am Yahweh (Jehovah) your God, who brought you out of the land of Egypt, out of the house of slavery." Thus introducing Himself as Yahweh, the God who saves His people.
In chapter 24, Moses and Aaron, Nadab, and Abihu, and seventy of the elders of Israel went up to meet with God on Mount Sinai, "and they saw the God of Israel... And he did not lay his hand on the chief men of the people of Israel; they beheld God, and ate and drank." Other prophets, Ezekiel (ch 1) and Isaiah (ch 6) for example, also see Yahweh and live.
Now, Jesus says expressly in John 5 that "the Father who sent me has Himself borne witness about me. His voice you have never heard, His form you have never seen, and you do not have his word abiding in you, for you do not believe the one whom he has sent. You search the Scriptures because you think that in them you have eternal life; and it is they that bear witness about me." And in chapter 14, He says, "I am the way, and the truth, and the life. No one comes to the Father except through me. If you had known me, you would have known my Father also. From now on you do know Him and have seen Him.” The Son takes on flesh, becomes incarnate through the virgin Mary, becomes the Son of Man so that He might reveal the Father. In taking the name Yeshua, He is expressly identifying Himself as Yahweh, the God who saves His people. The Son is the one who rescues His people from Egypt and thunders from Sinai.