Reply To: Split: Chidushim on Daf Yomi

The servitude in Mitzraim started from Yitzchok Avinu even though Avraham Avinu was told at the bris ben habesorim about it thirty years earlier. As the the child of his was in the information told to him who was Yitzchok. Being in Mitzraim for 210 years is implied in the difference between ישחק and יצחק. This was the mistake of the bnei Ephraim when they got out of Mitzraim thirty years earlier calculating from bris bnei habesorim. They got murdered by the Phelishtim and Yechizkiel Hanovi saw them being revived in Bikas Dura. This is described by the Targum Yanoson in the beginning of Parshas Beshalach. Hashem did not lead the Jews out the short way as they would have seen 200,000 dead bodies there and get so freightened that they would have returned to Mitzraim.