Circumcision for the Jews: A Sign of Their Covenant - Quick & Clear Bible Study

Why was circumcision the sign for the Jews? Take a look from the Bible to see some reasons.

Verses used in this study:
Genesis 17:7-14
Genesis 34:14
Exodus 4:24-26
Exodus 12:43,44,47,48
Numbers 9:5
Numbers 13:32,33
Joshua 5:1-10
Galatians 5:1-6
Galatians 6:15