Be'er Mayim Chaim, Genesis 12:5/באר מים חיים·בראשית י״ב:ה׳

1And Abram took, etc., and they set out for the land of Canaan, etc.: See what I wrote above to explain how Abraham knew the way in which he was to go. But according to the straightforward meaning, it appears to be according to the approach found in the holy Zohar (Lekh Lekhah 5:22-23) [about finding the place to sacrifice Isaac] and these are its [words]: The Holy One, blessed be He, gave Abraham the spirit of wisdom, etc. So he weighed [every place] in the scales and knew how to connect them to the powers entrusted to govern the inhabited places on earth. When he reached the middle point of civilization, he weighed it on the scales but could not reach any conclusion. He tried to see and know what power, etc. It is like this that, they set out with them from Ur of the Chaldeans for the land of Canaan, etc. (Genesis 11:31). It is just as with the [the sacrifice of Isaac, as] he certainly did not have a command from the Holy One, blessed be He. Rather, he brought himself there on his own, since he knew that the world was founded there and that the gate to the Heavens was there. So too here, even though the Holy One, blessed be He did show him the land, he estimated on his own with his wisdom that God would certainly want him to bequeath this land to him to inherit it. And so immediately when he got to the land, God appeared to him and said, I will give this land to your offspring, etc. (Genesis 12:7) — that is to say, you had the same intention as I, as this is the land that I wanted to give you and your offspring forever. And that is why, he built an altar there to the Lord who had appeared to him. The explanation [of this] is that he was gladdened and rejoiced that God had appeared to him and announced to him that He agreed with him, that he had the same intention as the Holy One, blessed be He. And it is like that which the [sages,] may their memory be blessed, explained [about the phrase in the Shabbat prayers], Moses rejoiced in his gifted portion.