Dunameis, "may well functions;" performs of superhuman ability ( Acts 2:22 ; Romans 15:19 ; two th two:nine ); of a brand new and higher electricity. Erga, "is effective;" the works of Him that's "great in Functioning" ( John five:twenty John 5:36 ). Miracles are seals of a divine mission. https://acim.biz/a-course-in-miracles-book-acim/