Albert Barnes on Mark 3:6

Straightway. Immediately; or, as soon as possible.

Took counsel. Laid a plan, Consulted with them. Literally, "made a consultation."

The Herodians. Mt 22:16.

How they might destroy him. They hated him for his holiness; because he reproved them; because he laid open their hypocrisy; and because he won the hearts of the people, and lessened their influence. They therefore determined to remove him, if possible, and thus avoid his reproofs. Sinners would often rather put to death the man that reproves them, than to forsake their sins. The Pharisees had rather commit any crime, even to the murder of the Messiah, than forsake the sins of which he rebuked them.

(d) "the Herodians" Mt 22:16