I'm sorry, but maybe I need more clarification. Jer. 2:13 certainly proves that God is the "fountain of living water", but I cannot find where Jesus claimed to be the fountain. In John 4:14, he promises He will "give the water", but anyone who goes to a fountain with a jug can give the water to his friends later, so that does not say he took on the title of "fountain". John 7:38 is similar, where He promises the water to those who believe. Directing people to the Father (who is the fountain) would accomplish that. Rev. 22:1 has the water coming from the throne of God and the Lamb, so either could be the fountain. Did I miss a verse? I can think of no other verses where Jesus talked about fountains.
Jesus certainly is the Good Shepherd. However, Is. 40:11 states God will act like a shepherd, not be one. Psalm 23:1 is David's opinion, and granted, we can all call God our shepherd (or copilot, like the bumper stickers say), but that does mean God claimed to be one. Finally, Gen. 49:24 says either Jacob, Joseph, or God (it can't be Joseph) is where the shepherd comes from, and that this shepherd is also the stone of Israel. Jesus comes from God through the line of Jacob, and Jesus is called the foundation stone and stumbling block of Israel, also. I do not see God saying "I am the shepherd", with or without the word "good", in any of them, only that He can act like a shepherd when He wishes to.
This is quite important to me, so I'm not challenging the verses to be a pest, but to get at the truth. Some Messianic Jewish theology depends on the fact that Jesus cannot be said to be God in the Hebrew language. If you found something they missed, I really would like to know.