Circumcision: Described
Source: TTT
Genesis 17:11
You are to circumcise the flesh of your foreskin, and this will be a sign of the covenant between Me and you.
Exodus 4:25
But Zipporah took a flint knife, cut off her son’s foreskin, and touched it to Moses’ feet. “Surely you are a bridegroom of blood to me,” she said.