Genesis 34:24
Then all the men of the town gave ear to the words of Hamor and Shechem his son; and every male in the town underwent circumcision.
Genesis 23:10
Now Ephron was seated among the children of Heth: and Ephron the Hittite gave Abraham his answer in the hearing of the children of Heth, and of all those who came into his town, saying,
Genesis 17:23
And Abraham took Ishmael, his son, and all whose birth had taken place in his house, and all his servants whom he had made his for a price, every male of his house, and on that very day he gave them circumcision in the flesh of their private parts as God had said to him.
Genesis 23:18
Became the property of Abraham before the eyes of the children of Heth and of all who came into the town.
Isaiah 1:10-16
Give ear to the word of the Lord, you rulers of Sodom; let your hearts be turned to the law of our God, you people of Gomorrah.
Matthew 7:6
Do not give that which is holy to the dogs, or put your jewels before pigs, for fear that they will be crushed under foot by the pigs whose attack will then be made against you.
Romans 2:28-29
The true Jew is not one who is only so publicly, and circumcision is not that which may be seen in the flesh:
1 Corinthians 7:19
Circumcision is nothing, and its opposite is nothing, but only doing the orders of God is of value.