'Darting' in the Bible

Don't be so happy, all you Philistines, just because the club that beat you has been broken! For a viper will grow out of the serpent's root, and its fruit will be a darting adder.

This is a message about the animals in the Negev: Through a land of distress and danger, inhabited by lionesses and roaring lions, by snakes and darting adders, they transport their wealth on the backs of donkeys, their riches on the humps of camels, to a nation that cannot help them.