For this reason [i.e., since he made one woman for one man] a man will leave [the home of] his father and mother and will cling to his wife
[Gen. 2:24 says], “For this reason a man will leave [the home of] his father and mother, and will cling to his wife, [so that] the two will become one flesh [i.e., united in such a close relationship, as to practically constitute one body].”