'Deceitful' in the Bible

Therefore shalt thou give a parting gift to Moresheth-gath: the houses of Achzib shall be a deceitful thing unto the kings of Israel.

Shall I be pure with wicked balances, and with a bag of deceitful weights?

For the rich men thereof are full of violence, and the inhabitants thereof have spoken lies, and their tongue is deceitful in their mouth.