During our Bible study at the home of Ross and Gloria Kinsler, retired Presbyterian missionaries who have written a book called "Jubilee Justice and the Struggle for Life," we looked at Luke 11, in which Jesus' disciples ask him "how to pray." This chapter deeply touched me as an advocate for those in need.
From the context it appears that the disciples were mainly interested in petitionary prayer, and they were requesting a formula to help them ask (and receive) what they want from God. So Jesus responded with what has come to be know as the "Lord's prayer," and explained how prayers works and what we need to pray for.
Our little group of activists tends to interpret the Bible from a social justice perspective. Thanks to Ched Myers, who founded this group twenty plus years ago, I have come to see "give us this day our daily prayer" as referring to the manna passage in Exodus 16 wherein God rains down from heaven enough food for the daily use of the Hebrews wandering in the wilderness. Jill quoted this passage in a recent talk she gave about God's "sharing economy":