"As you laid dead in your cradle,
I cried a million tears.
I loved you more than anything,
You were worth all my fears."

Wow, I could tell this was straight from your heart! So very sad! Just some suggestions:

"I'm sorry you had to go my love,
I do anything for you back.
I prey that you are happy now,
Laid buried in a sack."

I do should be I'd do.
I prey should be I pray.

Otherwise, I could feel the sadness sweep over me, nice work!