Greet Mary, who bestowed much labor on us - Who this Mary was, or what the labor was which she bestowed upon the apostles, we know not. Her works, though hidden from man, are with God; and her name is recorded with honor in this book of life.
Who bestowed much labour on us - Who labored much for us. Nothing more is known of her but this honorable mention of her name. It is probable that these persons were formerly residents in Greece, and that the apostle had there become acquainted with them, but that they had now removed to Rome.