17 By Emunah Avraham Avinu, when he underwent nisayon, offered up the Akedas HaYitzchak; and he who had received the Havtachot (Promises) was offering as a korban his Ben Yechid.11:17 Yn 3:16 18 This was Avraham Avinu, about whom it was said KI VEYITZCHAK YIKARE LECHA ZERA11:18 Gn 21:12 (In Yitzchak will be called your seed). 19 Avraham Avinu considered that Hashem was able to bring about the Techiyas HaMesim, from which he also received back Yitzchak as a tipus (type, pattern).