Answer:
You speak this when you are being sincere.
What's that 7 letter word with thousands of letters in it?
A tiny bead, like fragile glass, strung along a cord of grass.
You might accuse someone living with a stolen identity of being this.
There are 7 birds in a tree. A hunter shoots one bird down. How many birds are left in the tree?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.