"And they that be wise shall shine as the brightness of the firmament; and they that turn many to righteousness as the stars for ever and ever." Shine like the stars. (Daniel 12:3)
Not a revenge-oriented person, but really. No need to even avenge ourselves. (1) God is our avenger (2) Bitterness is poison (3) Some people just don’t deserve that place in your life. Hate and bitterness take too much energy that could be put.