As you get to know someone, you want to know their name.....

YHVH - The Fathers Name (modern translations include Yahweh, Yehovah or Jehovah-German, some people even just call Him Yah)...meaning BEHOLD THE HAND, BEHOLD THE NAIL
          Yahweh


YEHOSHUA - The formal name of Jesus....meaning YHVH IS OUR SALVATION

YESHUA - the short name of Yehoshua
              Jeshua - the German short name of Yeshua...as J's in German are pronounced
              with a Y

JESUS - the current/modern name of Yeshua.   It was derived from:
              Ieosus - Greek word for Yeshua as put on the signs by Pilate
              Yesus - Old German word for Ieosus
              Jesus - French word for Yesus as the Y's in German sound like J's

Little children call Him Jesus, but now as we are going to meet Him soon, we should instruct our little children His correct name and how we derived at the word Jesus. 

http://www.youtube.com/watch?src_vid=1wiBtYITrxM&annotation_id=annotation_880912&feature=iv&v=LBdfYNK_lvM

http://www.youtube.com/watch?src_vid=LBdfYNK_lvM&annotation_id=annotation_912449&feature=iv&v=1wiBtYITrxM