Genèse 22:2

Na is an expression of a request. He [God] said to him, “I plead with you, withstand this test so that no one can say that the first [tests] were not real.”

He [Avraham] responded, “I have two sons.” He [God] said to him, “Your only one.” He responded, “This one is an only son to his mother and the other is an only son to his mother.” He [God] said to him, “Who you love.” “I love them both,” he [Avraham] answered. Then, He said, “Yitzhak!” Why didn’t God reveal this from the beginning? So as not to confuse him suddenly, and he become bewildered and deranged. And, also, so that he value the mitzvah and he would get the reward for each and every expression.

[This refers to] Jerusalem. As in II Chronicles 3:1, “To build the House of God in Jerusalem on Mount Moriah.” Our rabbis explained [that it is called this] because from there instruction (lit. “Torah”) goes forth to Israel. Onkelos’ translation is based on the incense service which contains myrrh, nard, and other spices.

And He said, Take now thy son, thy only one whom thou lovest, Izhak, and go into the land of worship, and offer him there, a whole burnt offering, upon one of the mountains that I will tell thee.

TAKE NOW THY SON, THINE ONLY SON. Since Isaac was the son of the mistress and he alone was to be the one to carry his name, He called him Abraham’s only son. The description was for the purpose of magnifying the command, thus saying: “Take now thy only son, the beloved one, Isaac, and bring him up before Me as a burnt-offering.”

המוריה, same as האמוריה, “the land of the Emorite.” It happens frequently that the letter א is missing, just as in our verse. One such example is found in Exodus 10,21 וימש חשך, where the word וימש should really have been ויאמש חשך, “causing darkness.” Another example of the letter א being missing is found in Isaiah 13,20, where instead of לא יהל we would have expected לא יאהל, “he will pitch his tent.”

ויאמר...את יחידך, even though he is your only one and you love him very much as he has been born to you by your beloved wife when both of you were already well into your old age, and although My request is a very difficult one, I am asking you to do this.

ולך לך, this phraseology is quite common. We have encountered it in 12,1, in Jeremiah 5,5, in Exodus 18,27 as well as in Numbers 22,34 and again in Genesis 45,19. There are more such examples.

אל ארץ המריה, Jerusalem and district are referred to as ארץ המריה, and this is why the mountain on which Yitzchok was bound is also known by that name. Compare Chronicles II 3,1 לבנות בית ה' בירושלים בהר המריה, “to build the House of G’d in Jerusalem on Mount Moriah.” Our sages, as quoted by Rashi, say that the name reflects the fact that G’d’s instructions to man are issued from that mountain. [the seat of the Jewish Supreme Court which decides when there is any doubt about the authenticity of Torah legislation. Ed.] Onkelos translates the term as לארעא פלחנא, “the land where the priests perform service.”