Jesus was briefing 72 disciples (in addition to the twelve trainee-apostles). He told them to go without any visible means of support, nothing in reserve, just the provision that God would arrange for them.  In today's terms, no overnight bag and no credit card.  He wanted them to be a part of His mission, and therefore He would supply every one of their needs.  Later He asked the apostles, “‘When I sent you without purse, bag or sandals, did you lack anything?’  ‘Nothing,’ they answered." (Luke 22:35). The God who calls, also provides!

Jesus sent 72 followers ahead of Him, two by two, to prepare the way for His arrival (Luke 10:1-4).  He warned them that there would be one of two reactions: welcome or resentment.  They could only minister as far as the people wanted them to, and Jesus did not teach that blessings ought to be forced upon resistant or rebellious people.  Indeed, the urgency of the task meant that they should not waste time on those who had no interest.

We assume that some people have more authority than others, and their right to command is proportional to their power to coerce.    And in worldly terms that is often the case.  But in God's kingdom things are different (Matthew 20:25-28).  He has chosen that His authority is invested in His Word.  That is why Jesus is described as the 'Word', because He was given the full right to speak on behalf of Father God (Matthew 28:18).  

Jesus was more than happy, and with the Holy Spirit, praised Father God for this first extended co-working with an extended group of disciples.  Jesus had recently sent out the Twelve (Luke 9:1-6), and then 72 more (Luke 10:1-20), who had all believed in Him.  They accepted His commission to proclaim God's kingdom and returned with evidence that God had worked powerfully through what they said.  This was the beginning of the 'first-fruit' of the gospel (which would be sealed at Pentecost).  The Holy Spirit affirmed the joy of the Godhead, for the disciples had practised the model upon which