Dive In - Jennifer Knapp
I love the lyrics so much.
Careful what you say. Careful who might hear. Someone else inside the universe can write it down and you'll be hearing it for years. 
And the chorus:
I'm so tired of standing on the edge of myself. You know I'm longing for it - to dive in, dive in. You know it well, your voice will push me over the edge. You know I'm longing for it - to dive in.