C. F. Keil and Franz Delitzsch on Ecclesiastes 4:1

Ecc 4:1 “And again I saw all the oppressions that are done under the sun: and behold there the tears of the oppressed, and they have no comforter; and from the hand of their oppressors goeth forth violence; and they have no comforter.” Incorrectly Hahn: And anew I saw, - the observation is different from that of Ecc 3:16, though cognate. Thus: And again I saw, - the expression follows the syntactic scheme of Gen 26:18; regarding the fut. consec. brought into view here and at Ecc 4:7. The second העשׁ is part. pass.; the first, as at Job 35:9, and also at Amo 3:9, is abstract (i.e., bringing the many separate instances under one general idea) pluraletantum (cf. פּדוּיי, redemti, Isa 35:10; and redemtio, pretium redemtionis, Num 3:46); the plur. נע אשׁר need not appear strange, since even חיּים is connected with the plur. of the pred., e.g., Psa 31:11; Psa 88:4. דּמעת has, as at Isa 25:8 (cf. Rev 21:4, πᾶν δάκρυον), a collective sense. The expression כּח ... וּמיּד is singular. According to the most natural impression, it seems to signify: “and from the hand of their oppressors no power of deliverance” (carrying forward אין); but the parallelism of the palindromically constructed verse (as at Ecc 1:6; Ecc 2:10; Ecc 3:16) excludes this meaning. Thus כּח is here once-nowhere else-used, like the Greek βία, in the sense of violence; Luzzatto prefers the reading וּביד, by which the expression would be in conformity with the linguistic usage; but also מיד is explained: the force which they have in their hands is, in going forth from their hands, thought of as abused, and, as taking the form of שׁד or חזקה. In view of this sorrow which men bring upon their fellow-men, life for Koheleth lost all its worth and attraction.