Midrash su Salmi 92:5

If what R. Samuel the son of Nahman said is correct, and the Tabernacle was completed in three months, then why was it not erected immediately? Because the Holy One, blessed be He, wished to combine the festivities of the erection of the Tabernacle with the celebration of the birthday of our patriarch Isaac. Isaac was born on the first day of Nisan. The Holy One, blessed be He, said to Himself: I will combine the celebrations. The scoffers in that generation grumbled and complained, saying: “The work of the Tabernacle has already been completed and it still has not been set up.” They were not aware of the plan and the intention of the Holy One, blessed be He. Because of this King David declared: For thou, Lord, hast made me glad through Thy work; I will exult in the works of Thy hands (Ps. 92:5).

"For thou, O Lord, hast made me glad through thy work" (Ps. 92:4). Adam said: The Holy One, blessed be He, had made me glad and brought me into the garden of Eden, and showed me the place of the abode of the righteous in the garden of Eden, and He showed me the four kingdoms, their rule and their destruction; and He showed me David, the son of Jesse, and his dominion in the future that is to come. I took from my years seventy years and added them to his days, as it is said, "Thou wilt add days to the days of the king; his years shall be as many generations" (Ps. 61:6). The Holy One, blessed be He, said to him: Thou wilt add days to the days of (the king Messiah); I also will add to his years in the future which is to come, as though they were many generations, as it is said, "His years shall be as many generations" (ibid.). I have given to God praise, and song (lauding) His works, as it is said, "I will sing of the works of thy hands" (Ps. 92:4).

"How great are thy works, O Lord!" (Ps. 92:5). Adam began to glorify and to praise the Name of the Most High, as it is said, "How great are thy works, O Lord!" (ibid.) but Thy thoughts are very deep, like the great deep exceedingly (deep), as it is said, "Thy thoughts are very deep" (ibid.). "A brutish man knoweth not" (Ps. 92:6). Every man of Israel who is brutish (in knowledge) and has not learnt understanding, let the wise men of Israel teach him the ways of the Torah, as it is said, "Consider, ye brutish among the people" (Ps. 94:8). But a man who is an expert among the nations of the world is still foolish. Why? For he knoweth not the words of the Torah, as it is said, "Neither doth a fool || understand this" (Ps. 92:6).