A second possible explanation for the actions of Avraham is based on the following.
Jews have a commandment of Kiddush Hashem which in extreme situations even demands that Jews give up their lives for the sake of Hashem.
One of the more usual situations of Kiddush Hashem is explained by the Chafetz Chaim in Sefer Hamitzvot Hakatzar, mitzvah 5 and I will translate.
It is a positive precept to sanctify the name of G-d among the masses.
For it is stated and I will be sanctified among the children of Israel ( Vayikra/Leviticus 22:32). And this we have to do by giving over our lives to be put to death, and with all our might, in order to publicize the faith of the name of the Blessed {G-d} that if they seek to force us to remove us from our faith, that we should not consent and not listen and one should give himself over to die for this {end of quote}.
The Halacha gives limitations under what situations one must give up his life, and under what situations one does not give up his life in order to publicize the faith of the name of the Blessed {G-d} and there are certain gray areas, where one has the option of giving up his life for the mitzvah, but one can also avoid giving up his life, for example, by hiding yourself until the danger has past.
Since it is not necessary for me to go into too much detail for now when one must give up his life and when not, so I won't do it.
Two very well known examples of Kiddush Hashem (sanctification of G-d's name) that I wish to bring up for now are the stories of Mattityahu and Rabbi Akiva.
Mattityahu started the rebellion against the Greeks, who had made decrees against Judaism, despite the huge physical risks to himself, his family, and his fellow Jews.
It is well known, that Mattityahu started the revolt against Greek rule, by killing the Hellenist Jew Collaborator who was about to sacrifice to an idol on an altar and then he killed the local Greek forces. It is less known, that most of his children, the Macabees, although being highly successful fighters, were eventually killed by the Greeks and it took 20 years of warfare and suffering even after the miracle of Chanuka for Judea to regain complete Independence from the Greek empire.
Mattityahu was fully aware of these risks that he took for the sake of Kiddush Hashem, to save Judaism and the Jewish people, yet he nevertheless went ahead with his actions, because, the Torah has revealed to us that there are some ideals that are more precious than life itself.
The second example of Kiddush Hashem that I wish to bring up is the story of Rabbi Akiva. The Romans had made a ban on teaching Torah and he publicly defied them and taught Torah despite the danger.
He was eventually taken by the Romans for execution by slow torture.
Tractate Brachot page 61a, goes into detail about how Rabbi Akiva met his death (translation based primarily on Soncino)..
When R. Akiva was taken out for execution, it was the hour for the recital of the Shema’, and while they combed his flesh with iron combs, he was accepting upon himself the kingship of heaven.
His disciples said to him: Our teacher, even to this point? He said to them: All my days I have been troubled by this verse, ‘with all thy soul’, [which I interpret,] ‘even if He takes thy soul’. I said, "When shall I have the opportunity of fulfilling this?" Now that I have the opportunity shall I not fulfill it? He prolonged the word Echad {Hebrew for the word, one} until he expired while saying it.
A Bath Kol went forth and proclaimed: Happy art thou, Akiva, that thy soul has departed with the word Echad!
With this in all mind, it is possible that Avraham thought that Yitzchak's mission in life is to teach his other descendants, both present and future about what extent of sacrifice one should make for the religion of Hashem, when needed.
In other words, Avraham knew that the followers of Hashem, would at times be put to the most severe tests of faith, in which the only way out, would be to have someone make the type of sacrifices that Mattityahu and Rabbi Akiva made. He thought that Hashem wanted him to be the role model for such heroes, that sanctify the name of G-d to the highest decree.
According to this, it was Avraham's Love for Defending the Kingdom of Hashem in this world above all other ideals that made his go with zeal, to try to sacrifice Yitzchak on the altar.
I have not yet answered, according to this viewpoint, the other questions that I raised concerning the binding of Yitzchak. But I will leave over these questions for another time, G-d willing.