여호수아 5:5의 미드라쉬

“For everything there is a season, and a time for every purpose under the heavens” (Ecclesiastes 3:1).
There was a time for Adam the first man to enter the Garden of Eden, as it is stated: “He placed him in the Garden of Eden” (Genesis 2:15). And there was a time to depart from there, as it is stated: “He banished the man…” (Genesis 3:24). There was a time for Noah to enter the ark, as it is stated: “Come…to the ark” (Genesis 7:1). And there was a time to emerge from there, as it is stated: “Emerge from the ark” (Genesis 8:16). There was a time for the [mitzva of] circumcision to be given to Abraham, as it is stated: “You shall observe My covenant” (Genesis 17:9). And there was a time for his descendants to be circumcised, [and for many] of them to be circumcised [at once. This occurred] in two places, once in Egypt and once in the wilderness, as it is stated: “All the people who departed were circumcised [and all the people born in the wilderness…were not circumcised]” (Joshua 5:5).¹Joshua saw to their circumcision.
“And a time for every purpose under the heavens” – there was a time for the Torah to be given to Israel. Rav Beivai said: It was time for a certain thing that was located above the heavens to now be given under the heavens. What is that? It is the Torah, as it is stated: “God spoke all these matters, saying” (Exodus 20:1).

Rabbi said: Isaac circumcised Jacob, and Esau; and Esau despised the covenant of circumcision just as he despised the birthright, as it is said, "So Esau despised his birthright" (Gen. 25:34). Jacob clung to the covenant of circumcision, and circumcised his sons and his grandsons. Whence (do we know) that the sons of Jacob were circumcised? Because it is said, "Only on this condition will the men consent unto us to dwell with us… if every male among us be circumcised, as they are circumcised." (Gen. 34:22). Another text says, "Only on this condition will we consent unto you: if ye will be as we be" (Gen. 34:15). Hence thou canst learn that the sons of Jacob were circumcised. The sons of Jacob circumcised their sons and their grandsons. They gave it to them as an inheritance for an everlasting statute, until Pharaoh the Wicked arose and decreed harsh laws concerning them, and withheld from them the covenant of circumcision. And on the day when the children of Israel went forth from Egypt all the people were circumcised, both young and old, as it is said, "For all the people that came out were circumcised" (Josh. 5:5).

There are three afflictions, (namely,) the affliction of the fast, the affliction of the prison, and the affliction of the road. Whence do we know of the affliction of the fast? (Because it is said,) "I afflicted my soul with fasting" (Ps. 35:13). Whence do we know of the affliction of the prison? (Because it is said,) "They hurt his feet with fetters" (Ps. 105:18). Whence do we know of the affliction of the road? (Because it is said,) "He weakened my strength in the way" (Ps. 102:23). On account of the affliction of the road, (the children of Israel) did not circumcise, and when they went forth from Egypt all the people were circumcised, both young and old, as it is said, "For all the people that came out were circumcised" || (Josh. 5:5).