Once, we were asked why we chose to do what we do. We wanted to share, just in case someone else had the same question.
After these things the Lord appointed other seventy also, and sent them two and (by) two before his face into every city and place, whither he himself would come (was about to go). Therefore said he unto them, The harvest truly is great, but the laborers are few: pray ye therefore the Lord of the harvest, that he would send forth laborers into his harvest. Go your ways: behold, I send you forth as lambs among wolves. Carry neither purse, nor scrip (bag), nor shoes (sandals): and salute (greet) no man by the way (along the road). And into whatsoever house ye enter, first say, Peace be to this house. And if the son of peace be there, your peace shall rest upon it: if not, it shall turn to you again. And in the same house remain, eating and drinking such things as they give: for the laborer is worthy of his hire (wages). Go not from house to house. And into whatsoever city ye enter, and they receive you, eat such things as are set before you: and heal the sick that are therein, and say unto them, The kingdom of God is come nigh unto (near to) you. But into whatsoever city ye enter, and they receive you not, go your ways out into the streets of the same, and say, even the very dust of your city, which cleaveth on (clings to) us, we do wipe off against you: notwithstanding be ye sure of this, that the kingdom of God is come nigh unto (has come near) you (Luke 10:1-11).
In this passage, we see that the Lord chose seventy other disciples and sent them ahead in pairs to all the towns and villages he planned to visit later. More importantly were the instructions that he gave to seventy other disciples. We believe these instructions were given to us as well.