English “not” in Romans 12:14 “Bless them which persecute you: bless, and curse not” was translated from Greek particle 3361 mē which is a particle of qualified negation versus Greek particle 3756 ou which denotes absolute negation predicated upon which earth age is the topic. If this is the first time you have been taught about biblical earth ages please consider the possibility that your grammatical subject is other than God because Greek noun 165 aion is an earth age and Greek adjective 166 aionios describes and qualifies multiple earth ages. Greek noun 165 aion and Greek adjective 166 aionios appear in the bible 199 times so if none of your grammatical subjects have not brought this to your attention please consider the possibility that they are not from God.