have not seen, but believe

I do not ask that He must prove
His Word is true to me,
And that before I can believe
He first must let me see.
It is enough for me to know
'Tis true because He says 'tis so;
On His unchanging Word I'll stand
And trust 'til I can understand.

- E.M. Winter

John 20:29 - Then Jesus told him, "Because you have seen me, you have believed; blessed are those who have not seen and yet have believed."