Martha had misplaced her priorities, Mark 10:40, and was corrected by Jesus. Later, at a supper for Jesus in the home of Simon the leper, Martha was once again serving while Mary her sister was worshiping Jesus by anointing His feet with a costly perfume.
Martha was the first one to run and meet Jesus when He came to their home after the death of Lazarus. It was at this time that Martha said she knew Jesus could have prevented Lazarus from dying and that, even then, she knew He could raise him from the dead. She made a confession of faith in the deity of Jesus, every bit as strong as Peter's, which received a blessing from Jesus.
Martha was not wrong in serving Jesus and His disciples. Other women ministered to Jesus in this way without being corrected. Serving was a good thing, but Martha had put it in the wrong place. Her problem was priorities, not what she was doing. It was a great honor to have Jesus in her home and to be able to hear His personal words to her household. Martha should have given this the same priority that Mary did.
Just like Martha, many people are occupied with things that keep them from hearing the words of Jesus. It is easy to recognize and turn from things that are obviously sin, but even good things that we are involved in must be prioritized so that nothing takes the place of seeking first the kingdom of God.