Midras Mazmur 94:8: Ein Yaakov (Glick Edition), Pirkei DeRabbi Eliezer & Midrash Tehillim

(Fol. 55) We are taught: What songs did the Levites chant on the intermediate days (Chol Hamoed)? The songs were as follows: On the first day they said (Ps. 29) Ascribe unto the Lord, O ye sons of the mighty; on the second, (Ps. 50); on the third, (Ps. 94); on the fourth, (Ib. 8); on the fifth day, (Ib. 81); on the sixth day they said (Ps. 82) All the foundations of the earth are moved. If the Sabbath falls on one of these days, the song, all the foundations of the earth are moved, [the last one] should be superseded.

"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).

"What are Your deeds, O God? One begins by praising Your great name and says, 'What are Your deeds, O God?' But the depth of Your thoughts is a great abyss. No one can know them fully. A simple person from Israel should learn from the wise sages of Israel, as it is said, 'Understand this, you senseless among the people; and you fools, when will you be wise?' (Psalms 94:8). But a person who is knowledgeable in the ways of the nations is like a fool who does not understand the words of the Torah, as it is said, 'A fool does not understand this' (Psalms 92:7). During the flourishing of the wicked, when you see them increasing like grass and blossoming like the workers of iniquity, do not say 'Hallelujah' until they are destined to be destroyed, as it is said, 'Let them be destroyed forever' (Psalms 92:8). And similarly, it is said, 'Let sinners be consumed from the earth' (Psalms 104:35), and 'The wicked are not so, but are like chaff that the wind drives away' (Psalms 1:4). But You, O Lord, are exalted forever.