The wicked (Ps 112:10-112:10)

Resh   

“The wicked see it.

They are angry.

Shin   

They gnash their teeth.

They melt away.

Tav     

The desire of the wicked comes to nothing.”

This short psalm ends with a brief description of the wicked. The wicked, on the other hand, see what is going on. They are angry so that they gnash their teeth and simply go away. Nothing comes of their desires, unlike the dreams of the righteous.

Yahweh laughs at the wicked (Ps 37:12-37:13)

Zain   

“The wicked plot against the righteous.

The wicked gnash their teeth at them.

However Yahweh laughs at the wicked

He sees that their day is coming.”

Right now, the wicked plot against the righteous and gnash their teeth at them. However, their day is coming, so that right now Yahweh laughs at these wicked ones.