Genesis 22:14

The Lord will see – the simple meaning is according to the targum (Aramaic translation), Gd will choose and see for Himself this place in order to rest His Presence there, and to offer sacrifices here

And Abraham gave thanks and prayed there, in that place, and said, I pray through the mercies that are before Thee, O Lord, before whom it is manifest that it was not in the depth of my heart to turn away from doing Thy decree with joy, that when the children of Izhak my son shall offer in the hour of affliction, this may be a memorial for them; and Thou mayest hear them and deliver them, and that all generations to come may say, In this mountain Abraham bound Izhak his son, and there the Shekina of the Lord was revealed unto him.

אשר יאמר היום, “of which its is being said today and tomorrow that G’d had manifested Himself to Avraham at this mountain of the Lord.”

אשר יאמר היום, the place of which the Israelites had said on the day that the Torah was written (or given) that G’d manifests Himself on the mountain. G’d would reveal which mountain this is only in the future, in the days of David, seeing that even in Deuteronomy 12,11 only veiled reference is made to such a mountain. It was this mountain, subsequently known as the Temple Mount which Avraham now named ה' יראה.

ויקרא...ה' יראה, a reference to his having said to Yitzchok in verse 8 that G’d would select the animal for the offering.

אשר יאמר היום, a reference to the day on which this story is being related. This occurrence would be remembered every time G’d would manifest Himself on that mountain. When the Temple would be built, this event would be commemorated, for instance. Avraham had been told in a prophetic vision why this mountain had been chosen by G’d for this particular event. It was because also in the future Avraham’s descendants would make a point of offering their sacrifices on that mountain.
בהר ה' יראה, G’d would manifest Himself in the future also on this mountain.

ויקרא אברהם שם המקום ההוא: ה' יראה, “Avraham named that site: “The Lord will see.” The place is known in our days as the mountain of Moriah. It is called thus as it became a mountain due to the extreme degree of awe of the Lord Avraham had demonstrated there. It had actually first been a valley. Suddenly it was transformed into a tall mountain. Since it had previously been called “shalem” as we know from when its king congratulated Avraham on his victory over Kedorleomer and the kings with him (Genesis 14,18) Avraham now added another word to its name, i.e. יראה, “awe of the Lord,” so that after David conquered it from the Jebusites it is called “Y’ru-shalem.” [The name actually occurs already in chapter 10 of the Book of Joshua, but it did not become part of the Kingdom of the Israelites till some 400 years later. Ed.]

השם יראה, “the name of the attribute of Mercy of the Lord will become manifest.” According to our author, the name is meant to demonstrate not only to G–d but to mankind, that at this place Avraham had demonstrated the ultimate degree of being in awe of the Lord by being willing to sacrifice his son to him.