'Enemy' in the Bible

But {recently} my people have risen up as an enemy; from before the cloak you strip off the robe from those passing by [in] confidence, returning [from] war.

You should not rejoice over me, O my enemy! When I fall I will stand up; when I sit in darkness Yahweh [will be] a light for me.

Then my enemy will see, and shame will cover her who said to me, "Where [is] Yahweh your God?" My eyes will look upon her; now she will become a trampling place, like mud in the streets.