1 tn This is a metonymy; the “house” is put for those who live in it.
2 sn The response to these messengers determines how God’s blessing is bestowed – if the messengers are not welcomed, their blessing will return to them. Jesus shows just how important their mission is by this remark.
3 sn To shake the dust off represented shaking off the uncleanness from one’s feet; see Luke 10:11; Acts 13:51; 18:6. It was a sign of rejection.