Because you were offended, you spoke negatively about someone.

Isaiah 58:9e "and speaking wickedness,”

First. Because you were offended, you spoke negatively about someone.

If you continue to speak negative words about them, and don’t forgive them, your words become a weight over you. Then, sickness and oppression might follow you.

Second. Isn’t it wicked to always remind people of their mistakes and always speak negatively about them.

Phrases like, ‘you’ll never amount to anything’, or 'you’re not good at anything’ are wicked because they’re not true.