Lily makes a Biblical allusion when the bees cover her. To what does she allude in The Secret Life of Bees?chapter 8

The allusion comes on page 151 with the mention of "God,"
"Moses," and the "plagues."  The meaning of the allusion is directly explained in the
text, so I encourage you to find it, read it, and see what you get out of
it.

The background information necessary to understanding
this allusion is that it is a direct reference to the Exodus story of Moses leading the
Egyptians out of slavery in Egypt.  God sent 10 plagues on Pharoah and his people, one
of which included swarms of locusts.  Additionally, a key quote from the story (well
known from movies and songs, not just the Biblical story) is "Let my people go."  Lily,
here, remembers the first night the bees came into her room.  She thought of them then
like a plague that God had sent to her father, as if to say, "Let Lily
go."

Here at August's house, however, she is finally free. 
Consider the difference these bees hold for her now, as opposed to the first encounter
she had with them.