Your's, Mine and Ours to Share (Riddle)

I am the truth,
and yet a lie.
I am the word
sent from above.

It shows three,
and yet is one.
The past, the past, the past,
and the present and the future.

Many people
inspired by one.
Who? Who? Who
is the mighty one?

I know you.
Your touch, you smell,
It clings to me.

Your tears of joy
and sadness linger in me.
Your history is in me.
The love, the sadness, the passion.

I am
the truth,
the lie,
the word sent from above.