Q.19: Did all mankind fall in Adam’s first transgression?
A. The covenant being made with Adam, not only for himself but for his posterity, all mankind descending from him by ordinary generation sinned in him, and fell with him in his first transgression.
For since by man came death, by Man also came the resurrection of the dead. For as in Adam all die, even so in Christ all shall be made alive. 1 Corinthians 15:21-22