shake the dust off your feet
shake the dust off (one's) feet
To forsake someone, something, or some place as an expression of rejection or as a means of seeking a new beginning. There comes a point in most people's lives when they feel get tired of their job and yearn to shake the dust off their feet. If you find that the people in your life are causing more negativity than positivity, it might be time to leave them behind and shake the dust off your feet.
shake the dust off your feetleave a place indignantly or disdainfully.
This expression comes from Jesus's instructions to his disciples: ‘And whosoever shall not receive you…when ye depart out of that house or city, shake off the dust of your feet’ (Matthew 10:14).