Easton's 1897 Bible Dictionary:

Lord's Prayer
   the name given to the only form of prayer Christ taught his
   disciples (Matt. 6:9-13). The closing doxology of the prayer is
   omitted by Luke (11:2-4), also in the R.V. of Matt. 6:13. This
   prayer contains no allusion to the atonement of Christ, nor to
   the offices of the Holy Spirit. "All Christian prayer is based
   on the Lord's Prayer, but its spirit is also guided by that of
   His prayer in Gethsemane and of the prayer recorded John 17. The
   Lord's Prayer is the comprehensive type of the simplest and most
   universal prayer."