1513   Trinity, mission of
     3040   Holy Spirit, promise of
     3242   Holy Spirit, baptism with
     3257   Holy Spirit, gift of
     7907   baptism, practice

Mark 1:2-9

     5098   John the Baptist

Mark 1:7-8

     2366   Christ, prophecies concerning
     5624   witnesses, to Christ

Mark 1:8-11

     4293   water
     7906   baptism, in Gospels