חֲמַ֥ת תַּנִּינִ֖ם יֵינָ֑ם וְרֹ֥אשׁ פְּתָנִ֖ים אַכְזָֽר׃
Their wine is the venom of serpents, And the cruel poison of asps.
Targum Jonathan on Deuteronomy
Behold as the bitterness of serpents when they come forth from their wines, (?) so shall be the bitter cup of the curse which they are to drink in the day of their punishment, and cruel as the head of asps.
Targum Jerusalem
For the poison of this people is like that of serpents what time they drink wine, and their malice like the head of asps and cruel reptiles.