Adam Clarke's Commentary on the Bible - Ecclesiastes 4:4
For this a man is envied - It is not by injustice and wrong only that men suffer, but through envy also. For if a man act uprightly and properly in the world, he soon becomes the object of his neighbor's envy and calumny too. Therefore the encouragement to do good, to act an upright part, is very little. This constitutes a part of the vain and empty system of human life. read more
John Gills Exposition of the Bible Commentary - Ecclesiastes 4:12
And if one prevail against him, two shall withstand him ,.... If an enemy, or a thief, or a robber, attack anyone of them, in friendship and fellowship together, and is more than a match for him; both joined together will be able to resist him; so that he shall not succeed in his enterprise, and do the mischief he designed; see 2 Samuel 10:11 ; Thus, when Satan attacks a single believer, which he chooses to do when alone; so he tempted Eve in the garden, and Christ in the wilderness; and... read more