en_tn_condensed/jer/23/15.md

Yahweh of hosts says this

Jeremiah often uses these words to introduce an important message from Yahweh. See Jeremiah 6:6.

Look

The word "look" alerts the reader to pay attention to the important information that follows.

I am about to make them eat wormwood and drink poisonous water

Wormwood is a plant that is very bitter and unpleasant to eat. This phrase describes the punishment that Yahweh was going to bring about on the evil prophets.

I am about to

"I will soon"

pollution has gone out from the prophets

"evil has come from the prophets"

pollution

dirty and unsafe things that spoil the air, water, or land where they are found