I tried to create this thread a couple of days ago, so apologies if you've seen it before

I am searching for a carol whose first verse is:

Sleep, my darling little son Sleep my lovely, lovely little one For the world is heavy gold For you little hand to hold Sleep, then!

============ Other verses have couplets

You were born to die for we All upon the criss-cross tree

.... you won't mind If we treat you too unkind

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I think it is called the 'wormwood carol', but I could be entirely wrong