Verse:
You wont relent until You, have it all
My heart is Yours
You wont relent until You, have it all
My heart is Yours

Ill set You as a seal upon my heart
As a seal upon my arm
For there is love that is as strong as death
Jealousy demanding as the grave
And many waters cannot quench this love

Chorus:
Come be the fire inside of me
Come be the flame upon my heart
Come be the fire inside of me
Until You and I are One

Bridge:
I don't want to talk about You
Like Your not in the room
I want to look right at You
I want to sing right to You

The direct translation is

No te rindas
Hasta tener todo
Te doy mi ser

Te pondré como un sello sobre mi corazón
una marca sobre mi brazo
hay un amor más fuerte la muerte
y cellos duros como el seol
las muchas aguas no podrán apagar el amor

Ven y llena con fuego dentro de mi
Ven y prende la flama de mi corazón
Ven y llena con fuego dentro de mi
Hasta que seamos uno

I don't like it it doesn't sound right.

My wife translated the beginning to:

Tu Amor por mi nunca se agotare

thats as far as we have gotten