Jesus tells His disciples in the New Testament to ”shake the dust from your feet” if the people refused the Gospel – why? Because it’s was symbolic of having rejected Christ.
Therefore, it meant that there would be no trace of that place where the Disciples were leaving
Jesus also makes the statement in Matthew 10:15 that those people will be worse off than Sodom and Gomorrah (Genesis 19:24-25) because anyone who rejects the Gospel when they hear it, will be worse off than the cities which were destroyed by the fire from Heaven, as they never heard the Gospel at all.
This, to me, is a ”sobering thought.” Sodom and Gomorrah were known for their depravity, and yet, Jesus makes a clear distinction that those who reject the Gospel will be judged worse than people from these cities.
Sometimes God will call us to a place where we are called to pursue and continue to show God’s love, and to preach the Gospel, but there are other times when God will command us to leave or move on, and it is at this point that the disciples would have shaken the dust off their feet
As hard as it can be, we are not responsible for how the Gospel is taken by others, because we can not control another person’s heart, but if others do reject the Gospel, let ”your peace return to you” (v13) and leave that home or town, because they may have dismissed Christ once and for all