'Undergrowth' in the Bible

The Lord answered, "If you have raced on foot against men and they have worn you out, how will you be able to compete with horses? And if you feel secure only in safe and open country, how will you manage in the thick undergrowth along the Jordan River?

"A lion coming up from the thick undergrowth along the Jordan scatters the sheep in the pastureland around it. So too I will chase the Edomites off their land. Then I will appoint over it whomever I choose. For there is no one like me, and there is no one who can call me to account. There is no ruler who can stand up against me.

"A lion coming up from the thick undergrowth along the Jordan scatters the sheep in the pastureland around it. So too I will chase the Babylonians off of their land. Then I will appoint over it whomever I choose. For there is no one like me. There is no one who can call me to account. There is no ruler that can stand up against me.