Genesis 2:18 - Joseph Benson’s Commentary on the Old and New Testaments

God said Had said on the sixth day, when the woman was made. It is not good that man should be alone Though there was an upper world of angels and lower world of brutes, yet, there being none of the same rank of beings with himself, he might be truly said to be alone. It is not good: it was neither for man's comfort, who was formed for society, and not for solitude nor for the accomplishment of God's purpose in the increase of mankind. A help meet for him כנגדו, chenegdo, a most significant phrase; one as before him, or correspondent to him, his counterpart, suitable to his nature and his need, one like himself in shape, constitution, and disposition, a second self: one to be at hand, or near to him, to converse familiarly with him, to be always ready to succour and comfort him, and whose care and business it should be to please and help him.