Atos 7:8

8 Então lhe deu a aliança da circuncisão. Assim, Abraão gerou Isaque e o circuncidou no oitavo dia; e Isaque gerou Jacó, e Jacó gerou os doze patriarcas.

8 Then he gave Abraham the covenant of circumcision. And Abraham became the father of Isaac and circumcised him eight days after his birth. Later Isaac became the father of Jacob, and Jacob became the father of the twelve patriarchs.