Midrash su Salmi 93:5

THE GATHERING OF THE WATERS
ON the third day all the earth was flat like a plain and the waters covered the surface of all the earth. When the word of the Almighty was uttered, "Let the waters be gathered together" (Gen. 1:9), the mountains and hills arose from the ends of the earth and they were scattered over the surface of all the earth, and valleys were formed over the inner parts of the earth; and the waters were rolled together and gathered into the valleys, as it is said, "And the gathering together of the waters he called seas" (Gen. 1:10). Forthwith the waters became proud and they arose to cover the earth as at first, when the Holy One, blessed be He, rebuked them || and subdued them, and placed them beneath the soles of His feet, and measured them with the hollow of His hand that they should neither decrease nor increase. He made the sand as the boundary of the sea, just like a man who makes a fence for his vineyard. When they rise and see the sand before them they return to their former place, as it is said, "Fear ye not me? saith the Lord: will ye not tremble at my presence, which have placed the sand for the bound of the sea?" (Jer. 5:22).

(Ib. 34, 8) And Moses made haste, and bowed his head. What had he seen [that he bowed himself]? R. Chanina b. Gamla said: "He saw the attribute long-suffering." And the Rabbis said: "He saw the attribute Emeth (truth)." We are taught in a Baraitha in accordance with him who said he had seen the attribute long-suffering, viz: When Moses ascended to heaven, he found that the Holy One, praised be He! was sitting and writing the words long-suffering. And he said before Him: "Sovereign of the Universe! does this mean long-suffering for the righteous ones?" And he was answered: "Even for the wicked." "The wicked," Moses remarked, "ought to perish!" The Lord answered him: "In the future thou wilt see that My previous words will be necessary for thee." Thereafter when Israel sinned, the Lord said to Moses: "Didst thou not say long-suffering [only] for the righteous?" And Moses said before Him: "Sovereign of the Universe, but hast Thou not said to me, 'Also to the wicked'?" And concerning this it is written (Num. 14, 17) (Ib. b) And now, I beseech thee, let the greatness of the power of the Lord be made manifest as Thou hast spoken." R. Chaggi, ascending the steps of the college of Rabba b. Shila, heard a child reciting (Ps. 93, 5) Thy testimonies are exceedingly steadfast. In thy house abideth holiness, O Lord, to the utmost length of days. Immediately he began (Ib. 90, 1) A prayer of Moses. And he then said: "Infer from this that Moses saw the attribute long-suffering."