Ecclesiastes Rabbah 10:9

¹“One who transports stones will be saddened by them; and one who splits wood will benefit from it” (Ecclesiastes 10:9). “One who transports stones will be saddened by them” – one who transports himself from his studies will ultimately be sorry. He will seek a matter but will not find it. “And one who splits wood will benefit [ yisakhen ] from it.” As long as he toils in it, he will benefit from it, just as you say: “She will be an attendant [ sokhenet ] for him” (I Kings 1:2). Another matter: “One who transports stones” from place to place “will be saddened by them”; “and one who splits wood will benefit from it.” ). Rabbi Meyashya said: In reward for the two logs that Abraham chopped on Mount Moriah, he was privileged to have the sea split for his descendants into twelve strips.