8 “Whatever city you enter, and they receive you, eat such things as are set before you. 9 And heal the sick there, and say to them, ‘The kingdom of God has come near to you.’ 10 But whatever city you enter, and they do not receive you, go out into its streets and say, 11 ‘The very dust of your city which clings to us we wipe off against you. Nevertheless know this, that the kingdom of God has come near you.’ 12 But I say to you that it will be more tolerable in that Day for Sodom than for that city.” (Luke 10:8–12, NKJV)
Jesus sent out seventy disciples to places He was about to go (Lk. 10:1). They were to heal the sick and preach the kingdom of God (Lk. 9:60; 10:9). Some would receive them and their message, while others would not (Lk. 10:5-7). By explaining what to do and what to expect, Jesus also gave them a reason not to be discouraged when a city rejected the gospel of the kingdom. He taught them there is a point at which the messenger is relieved of responsibility and the hearer is held accountable. Shaking off the dust of the city was a symbolic gesture that testified against the city for rejecting the gospel. They, not the messengers, would be held accountable (Lk. 9:5; Acts 18:6). The gospel teacher is not innocent when the truth is not faithfully preached (Acts 20:26). Such a failure does not excuse the sinner (Ezek. 3:16-21). But, when truth is taught and it is refused, the full weight of accountability on Judgment Day will fall on those who refused to hear and obey God (Lk. 10:12).