A verb meaning to do evil, do wrong, or cause harm. It is the opposite of agathopoieo (to do good) and appears in direct contrast with well-doing in 1 Peter. The distinction between doing evil and doing good is a central organizing principle of the Christian ethical life.
Peter's repeated contrast between kakopoieo and doing good reflects a fundamental ethical framework: Christians live in such a way that their behavior cannot be legitimately criticized even by their opponents. The goal of visible, undeniable goodness is not moral pride but witness — that the watching world may see their good deeds and glorify God. Conversely, doing evil brings shame on the name of Christ. Jesus before Pilate asks: 'For which of my good works do you stone me?' The good person should have nothing to fear from earthly authorities — only wrongdoing brings legitimate punishment.