Joshua 5:2

At that time Yahweh said to Joshua, "Make for yourself knives of flint, and circumcise the {Israelites} a second time."

Exodus 4:25

But Zipporah took a flint [knife], and she cut off the foreskin of her son, and she touched his feet, and she said, "Yes, you [are] a bridegroom of blood to me."

Genesis 17:10-14

This [is] my covenant which you shall keep, between me and you, and [also] with your offspring after you: Every male among you shall be circumcised.

Deuteronomy 10:16

So you shall circumcise the foreskin of your heart, and {do not be stubborn}.

Deuteronomy 30:6

"And Yahweh your God will circumcise your heart and the heart of your offspring to love Yahweh your God with all your heart and with all your inner self {so that you may live}.

Romans 2:29

But the Jew {is one inwardly}, and circumcision [is] of the heart, by the Spirit, not by the letter, whose praise [is] not from people but from God.

Romans 4:11

And he received the sign of circumcision [as] a seal of the righteousness by faith which [he had] {while uncircumcised}, so that he could be the father of all who believe {although they are uncircumcised}, so that righteousness could be credited to them,

Colossians 2:11

in whom also you were circumcised with a circumcision not made by hands, by the removal of the body of the flesh, by the circumcision of Christ,

Treasury of Scripture Knowledge

Summary

At that time the LORD said unto Joshua, Make thee sharp knives, and circumcise again the children of Israel the second time.

Bible References

Circumcise

Genesis 17:10
This [is] my covenant which you shall keep, between me and you, and [also] with your offspring after you: Every male among you shall be circumcised.
Deuteronomy 10:16
So you shall circumcise the foreskin of your heart, and {do not be stubborn}.
Deuteronomy 30:6
"And Yahweh your God will circumcise your heart and the heart of your offspring to love Yahweh your God with all your heart and with all your inner self {so that you may live}.
Romans 2:29
But the Jew {is one inwardly}, and circumcision [is] of the heart, by the Spirit, not by the letter, whose praise [is] not from people but from God.
Romans 4:11
And he received the sign of circumcision [as] a seal of the righteousness by faith which [he had] {while uncircumcised}, so that he could be the father of all who believe {although they are uncircumcised}, so that righteousness could be credited to them,
Colossians 2:11
in whom also you were circumcised with a circumcision not made by hands, by the removal of the body of the flesh, by the circumcision of Christ,