Tzadikim called by name of G-d

 Bava Basra (075b) The righteous will in time to come be called by the name of G-d; for it is said: Every one that is called by My name, and whom I have created for My glory. I have formed him, yea, I have made him.   R. Samuel b. Nahmani said in the name of R. Johanan: Three were called by the name of G-d, and they are the following: The righteous, the Messiah and Jerusalem. 

Megila (18a) Rav Acha also said in the name of Rav Eleazar: How do we know that G-d called Jacob G-d Because it says, And the G-d of Israel called Jacob G-d. For should you suppose that what the text means is that Jacob called the altar G-d, then it should be written, ‘And Jacob called it’. But as it is not written so, we must translate, ‘He called Jacob G-d’. And who called him so? The G-d of Israel.

Rabbeinu Bachye (Bereishis 33:20) A kabbalistic approach: the G-d of Israel called Yaakov “EL.” This is also what our sages have said in Bereshis Rabbah 79,8. The wording there is that G-’d said to Israel: “I am G-d in heaven whereas you are “EL” on earth.” This would reflect what we have quoted repeatedly that Yaakov’s likeness is engraved on the throne of G-d.