Now as they went on their way, he entered a village; and a woman named Martha received him into her house. And she had a sister called Mary, who sat at the Lord’s feet and listened to his teaching. But Martha was distracted with much serving; and she went to him and said, “Lord, do you not care that my sister has left me to serve alone? Tell her then to help me.”
But the Lord answered her, “Martha, Martha, you are anxious and troubled about many things; one thing is needful. Mary has chosen the good portion, which shall not be taken away from her.” (Luke 10:38-42; the Gospel lesson for the Nativity of the Theotokos)
St Theophylact of Ochrid comments:
Understand that Martha represents active virtue, while Mary represents divine vision. Action entails distractions and disturbances, but divine vision, having become the ruler of the passions (for Maria means mistress, she who rules), devotes itself entirely to the contemplation of the divine words and judgements…therefore, whoever sits at the feet of Jesus, that is, whoever steadfastly follows and imitates Jesus, is established in all active virtue. Then such a man will also come to the listening of the divine words, that is, he will attain to divine vision. Mary first sat, and by doing this she was then able to listen to Jesus’ words.
Therefore you also, O reader, if you have the strength, ascend to the rank of Mary: become the mistress of your passions, and attain to divine vision. But if you do not have the strength, be Martha, and devote yourself to active virtue, and by this means welcome Christ.
(Hillarion Alfeyev’s Jesus Christ: His Life and Teaching, p. 453)