I'll never say no to you

I'll never say no to you,
Whatever you say or do,
If you ask me to wait for a lifetime.
You know I'll gladly wait
For a lifetime or two
Just to look at you.

I'll smile, when you say "Be Glad,"
I'll weep if you want me sad.
Today is tomorrow
If you want it so.
I'll stay or I'll go,
But I'll never say no...

From The Unsinkable Molly Brown by Meredith Willson, so beautifully sung by Harve Presnell on the cast album with which I grew up.