The following is from Arthur A. Just, The Ongoing Feast: Table Fellowship and Eschatology at Emmaus (Collegeville: The Liturgical Press, 1993), 165.
Luke 10:7-9, 17-20, 21-24
The instructions of Jesus to his seventy disciples in Luke 10:7-9 point out the continuity between table fellowship of Jesus and that of the disciples. Only Luke has the command to 'remain in the same house, eating and drinking what they provide, for the laborer deserves his wages; do not go from house to house.' This may refer to table fellowship with those who are ritually unclean, i.e. do not go from house to house looking for food that is ritually uclean. In the same context they are told to heal the sick and say 'the kingdom of God has come near to you' (10:9). The kingdom of God is near in the ministry of the disciples because they bring with them the table fellowship of Jesus--his teaching, healing, and eating [ft. note: Marshall, the The Gospel of Luke, 421 suggests a parallel to 1 Corinthians 10:27 and the problem of Christian table fellowship with Gentiles.]. Luke 10:17-20 describes the success of the mission of the seventy in eschatological terms, and 10:21-24 seems to resemble Jewish wisdom sayings concerning eschatological secrets.