This is another incident involving women who became disciples of Jesus (cf. Luke 8:1-3; et al.). Like the parable of the Good Samaritan it shows Jesus overcoming prejudice. As the former parable illustrated the meaning of the second commandment, this one elucidates the first commandment. Jesus had claimed to be the revealer of God to humankind ( Luke 10:22). Now the disciples learned again the importance of listening to Him (cf. Luke 8:1-21; et al.). [source][source][source]
"He [1] may have placed it immediately after the preceding parable as a safeguard against any of his readers coming under the misapprehension that salvation is by works. He makes the point that waiting quietly on the Lord is more important than bustling busy-ness." [2][source]