Jacob summoned his sons from the land of Egypt, and bade them come to him at Raamses, first, however, commanding them to make themselves clean, that the blessing he was about to bestow might attach itself to them. Another one of his commands was that they were to establish an Academy, by the members of which they were to be governed.
When his sons were brought into his presence by the angels, Jacob spoke, saying, "Take heed that no dissensions spring up among you, for union is the first condition of Israel's redemption," and he was on the point of revealing the great secret to them concerning the end of time, but while they were standing around the golden bed whereon their father lay, the Shekinah visited him for a moment and departed as quickly, and with her departed also all trace of the knowledge of the great mystery from the mind of Jacob. He had the same experience as his own father Isaac, who also had loss of memory inflicted upon him by God, to prevent him from revealing the secret at the end of time to Esau, when he summoned him to receive his blessing.