Yahweh is the all powerful consoler (Isa 51:12-51:14)

“I!

I am he that comforts you!

Why then are you afraid

Of a mere mortal who must die?

Why are you afraid

Of a human being who fades like grass?

You have forgotten Yahweh!

Your Maker!

He stretched out the heavens!

He laid the foundations of the earth!

You fear continually all day long

Because of the fury of the oppressor.

Who is bent on destruction?

Where is the fury of the oppressor?

The oppressed shall speedily be released.

They shall not die.

They shall not go down to the Pit.

They shall not lack bread.”

Second Isaiah uses the first person singular so that there is no doubt that it is Yahweh who is speaking in comforting tones. He wanted to know why they were afraid of a mere mortal human being who was going to die also, like faded grass. They must have forgotten their maker that had, as usual, stretched out the heavens and laid the foundations of the earth. Why were they afraid of the fury of their oppressors? Don’t worry! They will soon be released. They will not die and go into the Pit of the underground. Instead, they will have enough bread to eat.

Yahweh’s final judgment against idolatry (Isa 2:18-2:22)

“The idols shall utterly pass away.

Enter the caves of the rocks!

Enter the holes of the ground!

Flee from the terror of Yahweh!

Flee from the glory of his majesty!

He rises to terrify the earth.

On that day,

People will throw away

Their idols of silver

To the moles.

They will throw away

Their idols of gold

To the bats.

These were the idols

Made for themselves

To worship.

Enter the caves of the rocks!

Enter the holes of the ground!

Flee from the terror of Yahweh!

Flee from the glory of his majesty!

He rises to terrify the earth.

Turn away from mortals!

They only have breath

In their nostrils.

Of what account are they?”

Isaiah points out that the idols would without doubt pass away. Then he repeats what he said earlier about hiding behind rocks and in the ground. In fact, this same refrain is repeated 2 verses later. People will be throwing away their silver and gold idols that they themselves had made to the moles and the bats.  As they hide in the caves and underground, Yahweh will come to terrify the earth and proclaim his glory. People will run away from mortals, since they only have breath in their noses. They will be useless in this day of the Lord.