Toriel:
What a miserable creature torturing such a poor, innocent youth. Do not be afraid, my child. It is I, Toriel, guardian of [bad word] 

Oh dear child,
You've fallen down,
It's dark and there's no one around
To guide you through the dark
But please don't you worry your little head
I'll be here
To guide you along
Right here, by your side
Through the maze
And teach you the way

Just take my hand
Don't be afraid
It has been so long since a human has [bad word] by here
You remind me of love I'd once known

Listen well,
My dear child,
You're going to grow up
And learn all that
Life will teach you
Your mother is always so proud
And you will never leave me
Here you will stay
Never will you be afraid
Here with me, you've fallen down, now get up
The underground isn't such
An awful place to live
Peacefully together
And who would need to see light of day?

Oh my child,
Bathed in light,
I know that you're scared, that you've
Fallen down,
But Toriel
Will spare your life
 [bad word]  my child,
Let's move on
And live in my world and just
Maybe you
Could teach me
How you stayed determined and strong