Job 39:5-7

39:5 Who let the wild donkey go free?

Who released the bonds of the donkey,

39:6 to whom I appointed the steppe for its home,

the salt wastes as its dwelling place?

39:7 It scorns the tumult in the town;

it does not hear the shouts of a driver.

Jeremiah 2:24

2:24 You are like a wild female donkey brought up in the wilderness.

In her lust she sniffs the wind to get the scent of a male.

No one can hold her back when she is in heat.

None of the males need wear themselves out chasing after her.

At mating time she is easy to find.

Hosea 8:9

The Willful Donkey and the Wanton Harlot

8:9 They have gone up to Assyria,

like a wild donkey that wanders off.

Ephraim has hired prostitutes as lovers.