You are misquoting Jesus,He never spoke those words.
Here is the quote in the Bible you seem to be referring to:
John 10:30 (King James Version)
I and my Father are one.
Here is a modern translation which make it more clear that Jesus was referring to the fact that Jesus is in total unity with God in beliefs,acts,goals,Spirit and most important,LOVE AND FORGIVENESS:
John 10:30 (Contemporary English Version)
and I am one with the Father.