Albert Barnes Commentary Romans 16:6

"Salute Mary, who bestowed much labor on you." — Romans 16:6 (ASV)

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.