In a letter to Rabbi Kook, Rabbi Isser Zalman Meltzer and Rabbi Moshe Mordechai Epstein greeted Rabbi Kook with “Our honored friend, the great gaon and glory of the generation, our master and teacher, Avraham Yitzchak Hacohen, shlita”. Meltzer was also quoted as saying “Let them, any of us, pray on Yom Kippur the way Rav Kook prays on an average weekday.”[43]
Rabbi Isser Zalman Meltzer also once said to the famed Rabbi Chaim Ozer Grodzinsky from Vilna, �The two of us are considered Torah giants until we reach the door of Rabbi Kook�s office.� (cited by Rabbi Eliezer Melamed, Israel National News, August 8, 2013).
There are also some rabbis who spoke very highly of Kook in greetings of the letters they sent to him.
Chaim Ozer Grodzinski: “Our friend, the gaon, our master and teacher, Rabbi Avraham Yitzchak Kook, shlita” and “The Glory of Honor, My Dear Friend, Ha-Rav Ha-Gaon, Ha-Gadol, the Famous One… The Prince of Torah, Our Teacher, Ha-Rav Avraham Yitzchak Ha-Cohen Kook Shlita…”[44]
Boruch Ber Leibowitz: “The true gaon, the beauty, and glory of the generation, the tzaddik, his holiness, Rabbi Avraham Yitzchak, may his light shine, may he live for length of good days and years amen, the righteous Cohen, head of the beis din [court] in Jerusalem, the holy city, may it soon be built and established.”
Chatzkel Abramsky: “The honored man, beloved of Hashem and his nation, the rabbi, the gaon, great and well-known, with breadth of knowledge, the glory of the generation, etc., etc., our master Rabbi Avraham Yitzchak Hacohen Kook, shlita, Chief Rabbi of the Land of Israel and the head of the Beis Din in the holy city of Jerusalem”
Rabbi Shlomo Zalman Auerbach: “In the time of Rabbi Kook, the majority of Torah giants were ‘all as if nothing’ compared to him.
Rabbi Yosef Shalom Elyashiv: Owing to the close relationship Rabbi Kook had with his grandfather, the Leshem, Rabbi Shlomo Elyashiv, Rabbi Kook made the match of Rabbi Yosef Shalom Elyashiv and his wife, who was the daughter of Rabbi Kook’s close student, Rabbi Aryeh Levin. Rabbi Kook officiated at their wedding, and Rabbi Yosef Shalom Elyashiv later chose Rabbi Kook to be the Kohen (Priest) to redeem his oldest son, Shlomo, at his Pidyon Ha-Ben. Rav Elyashiv revered Rav Kook for both his piety and his Talmudic erudition. Rav Elyashiv would do all he could to silence those who would criticize Rav Kook and attempt to diminish his stature. He would frequently describe Rav Kook�s saintliness at his Shabbat table and occasionally reminisce about the times he attended seudah shelishit in his home.
Rabbi Ovadia Yosef said of Rabbj Kook that he was “a great man” and it is “forbidden to speak against him.” Rabbi Yosef further called Rabbi Kook “Tzaddik Yesod Olam
We know Haktan will say ots all stories that can be interpreted. Right only his facts are correct. of course he will bully us despite overwhelming evidence that R Kook was a holy man.