"Jesus says that the Father and he are one"
Exactly,nice quote,but,you only quoted the bit that suited your trinitarian bias,and what you have been taught to think,not how to think.
Now lets go to John 17
Jesus testimony,my favourite chapter in the bible.
The context in which you used a portion of a verse to support a theological position,when viewed in its entirety
Means,nothing like what you are saying.
Lets view the context below,i will highlight in capitals the true context
those whom thou hast given me, THAT THEY(his followers)MAY BE ONE, AS WE
ARE ONE.
12While I was with them(his followers) in the world, I kept them in thy name: those that thou gavest me I have kept, and none of them is lost, but the son of perdition; that the scripture might be fulfilled.
13And now come I to thee; and these things I speak in the world, that they might have my joy fulfilled in themselves.
14I have given them thy word; and the world hath hated them, because they(his followers) are not of the world, even as I am not of the world.
15I pray not that thou shouldest take them out of the world, but that thou shouldest keep them from the evil.
16They are not of the world, even as I am not of the world.
17Sanctify them through thy truth: thy word is truth.
18As thou hast sent me into the world, even so have I also sent them into the world.
19And for their sakes I sanctify myself, that they also might be sanctified through the truth.
20Neither pray I for these alone, but for them also which shall believe on me through their word;
21That they(his followers) all may be one; as thou, Father,
art in me, and I in thee, that they(his followers) also may be one in us: that the world may believe that thou hast sent me.
22And the glory which thou gavest me I have given them; that they(his followers) may be one, even as we are one:
23I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them, as thou hast loved me
Now,in context,a christian can be one with God,just as Jesus was one with God!
They all share the same spirit
Philipians 2.5
Let this mind be in you, which was also in Christ Jesus
They all have the same purpose,mind,goals
One =unity of thought,purpose,spirit
