Midrash su Salmi 29:9

(Exodus 18:1) "And Yithro heard": What did he hear that caused him to come (and join Israel)? The war with Amalek, which is juxtaposed with this section. These are the words of R. Yehoshua. He heard of the (prospective) giving of the Torah and he came. For when the Torah was to be given to Israel, all the kings of the earth shook in their palaces, viz. (Psalms 29:9) "and (each king) in his palace accorded glory" (to the L rd). At that time, all the kings of the nations convened with the wicked Bilam and said to him: Is it possible that He is going to do to us as He did to the generation of the flood? He replied: Fools that you are! The Holy One Blessed be He already swore to Noach that he would not bring (another) flood to the world, viz. (Isaiah 54:9) "For this to Me is like the waters of Noach, of which I swore that the waters of Noach would no more pass over the earth." They: Perhaps he will not bring a flood of water, but He will bring a flood of fire? Bilam: He will bring neither a flood of fire nor a flood of water, but the Holy One Blessed be He is giving Torah to His people and to His loved ones, viz. (Psalms, Ibid. 10) "the L rd will give strength ("oz" = Torah) to His people." When all of them heard this from his mouth, they all responded (Ibid.) "May the L rd bless His people with peace," and they turned and went, each to his place. R. Eliezer says: Yithro heard the splitting of the sea and came (to join Israel). For the splitting of the sea was heard from one end of the world to the other, viz. (Joshua 5:1) "And it was, when all the kings of the Emori heard, etc." And thus did Rachav the harlot say to the messengers of Joshua (Ibid. 2:10-11) "For we heard how the L rd dried up the waters of the Red Sea before you when you went out of Egypt … and when we heard, our hearts melted, and no spirit was left in a man before you." They said: Rachav the harlot was ten years old when Israel left Egypt, and all forty years that Israel was in the desert, she plied her trade. At the end of fifty years, she converted, saying: L rd of the universe, I have sinned in three areas: niddah, challah, and candle lighting. Forgive me by virtue of three things: the rope, the window, and the wall, viz. (Ibid. 15) "And she let them down by a rope through the window, for her house was on the side of the wall, and she lived within the wall."...

The Holy One of Blessing is High and Exalted, His throne is [also] High and Exalted. And from where do we know that the Holy One of Blessing is called "High and Exalted"? From (Isa. 57:15) "This is what [Ad-nai] High and exalted said". And from whre do we know that even His throne is High and Exalted? From (Isa. 6:1) "And I saw my Lord sitting on a high and exalted throne" etc. The Holy One of Blessing is called Justice as it says "I, Ad-nai, am the Speaker of Justice" (Isa. 45:19) - and from where do we know that even His throne is called Justice? From "Justice and Judgment are the foundation of Your throne" (Ps. 89:15)The Holy One of Blessing is called Judgment as it says "because a God of Judgment is Ad-nai" (Isa. 30:18) and even His throne is called Judgment, as it says "from there were sat thrones of Judgement (Ps. 122:5).The Holy One of Blessing is called Truth as it says "Ad-nai is a God of Truth" (Jer. 10:10) and even His throne is called Truth, as it says "And he readied in Lovingkindness a throne, and sits there in Truth (Isa. 16:5). The Holy One of Blessing is called Glory as it says "May the King of Glory enter" (Ps. 24:7) and even His throne is called Glory, as it says "A throne of Glory, high from the beginning" (Jer. 17:12). May the King of Glory come and sit on the Throne of Glory, in the Temple of Glory as it is said "and in His Temple everything says 'Glory!'" (Ps.29:9) The Holy One of Blessing is called Holy as it says "Holy, holy Holy is Ad-nai Tzevaot, the whole earth is filled with His Glory" (Isa. 6:3) and even His throne is called Holy, as it says "God sat on His throne of Holiness (Ps. 47:9). May the King of Holiness come and sit on the Throne of Holiness, in the great secret of holy ones, as it is said: “A God dreaded in the great secret of the holy ones” (Ps. 89:8). - How many thrones the Holy One of Blessing has!He has an Established throne, as it says "Your throne has been established ever since time" (Ps. 93:2). He has a throne of Justice and Judgment, as it says "Justice and Judgement are the foundation of Your throne" (Ps. 89:15). He has a throne of Lovingkindness, as it says "He readied in Lovingkindness a throne" (Isa. 16:5). He has a Throne of Yah, as it says "because there is a hand against the throne of Yah" (Ex. 17:16). He has a throne of Glory, as it says "a throne of Glory high from the beginning " (Jer. 17:12). He has a throne of Truth, as it says "He readied in Lovingkindness a throne and sits there in Truth" (Isa. 16:5). He has a Holy throne, as it says "God sat on his throne of Holiness"(Ps. 47:9). He has an eternal throne, as it says "Your throne, oh God is forever and ever"(Ps. 45:7). He has a throne of Mercy, as it says "To our Lord belongs Mercy and Forgivenesses" (Daniel 9:9). He has a throne of Sovereignty, as it says "and Sovereignty shall be Ad-nai's"(Obadiah 1:21). He has a High and Exalted throne, as it says "And I saw my Lord sitting on a high and exalted throne" (Isa. 6:1). May the High and Exalted King sit on the High and Exalted throne, blessed, and exalted, and higher than any blessing and praise.

(Fol. 116) The following Tannaim differ in this point: (Ex. 18, 1) Now Jethro, the priest of Midian, Moses' fahter-in-law, heard. What was the news which he heard that caused him to go to Moses and become a proselyte? R. Joshua says: "He heard of the war with Amalek; this caused him to come to Moses; for next to this is written (Ib. 17) And Joshua discomfited Amalek and his people with the edge of his sword." R. Elazar the Modite said: "He heard of the giving of the Torah; this caused him to come and visit Moses; for when the Holy One, praised be He! gave the Torah unto Israel, His voice rang from one end of the globe to the other, and caused all the idolatrous kings to tremble in their palaces and they sang praises [for him], as it is said (Ps. 29, 9) And in His temple all say, 'Glory.' They all assembled around Bil'am saying to him: 'What do these voices refer to? Perhaps He is bringing a flood upon the world, as it is said (Ib.) "Yea, the Lord sitteth as King forever, i.e., for long since He had already sworn not to bring a flood upon the world." They then said to Bil'am: "Perhaps He cannot bring a flood of water [on account of his oath] but He is bringing now a flood of fire, as it is said (Is. 66, 16) For by fire will the Lord judge." Whereupon Bil'am replied: "Long since He had already sworn not to destroy all the flesh." 'What then mean all these voices?' asked they again. Whereupon he replied: 'A precious treasure which the Holy One, praised be He! kept in His treasure, which was preserved with Him for nine hundred and seventy-four generations before the creation; this treasure He wants to give to His children, as it is said (Ib.) The Lord will give strength unto His people.' Whereupon they all responded: "The Lord will bless His people with peace.' " R. Elazar b. Jacob said: "Jethro heard of the division of the Red Sea, as it is said (Josh. 5, 1) And it came to pass, when all the kings of the Amorites heard, etc., how the Lord dried up the waters of the Jordan from before the children of Israel, until they were passed over, that their hearts melted, neither was there spirit in them any more, because of the children of Israel." So also said Rachab the harlot unto the messengers of Joshua (Ib. 2, 10) For we have heard how the Lord dried up the water of the Red Sea before you, etc. And as soon as we had heard it, our hearts did melt, neither did there remain any more spirit in any man, because of you."