• Genesis 17:9-11
  And God said to Abraham: 'As for you, you shall keep My covenant, you and your descendants after you throughout their generations. This is My covenant which you shall keep, between Me and you and your descendants after you: Every male child among you shall be circumcised; and you shall be circumcised in the flesh of your foreskins, and it shall be a sign of the covenant between Me and you.
   
• Acts 15:1
  And certain men came down from Judea and taught the brethren, “Unless you are circumcised according to the custom of Moses, you cannot be saved.”
   
• Acts 15:5
  But some of the sect of the Pharisees who believed rose up, saying, “It is necessary to circumcise them, and to command them to keep the law of Moses.”
   

Related Scriptures

• 1 Corinthians 7:19
  Circumcision is nothing and uncircumcision is nothing, but keeping the commandments of God is what matters.