Bitterness, envy, and self-seeking in your hearts are indications that satan is in control and has authority over what you think and what you do.

[James 3:14-16] But if you have bitter envy and self-seeking in your hearts, do not boast and lie against the truth. This wisdom does not descend from above, but is earthly, sensual, demonic. For where envy and self-seeking exist, confusion and every evil thing are there.