On Sunday, May 23rd 2010, on the feast day of Pentecost, His Grace Bishop Longin served Holy Hierarchal Liturgy in the Church of the Holy Trinity in Saint Louis, MO. along with the parish priest Protopresbyter-stavrophor Radomir Ckautovic and the diocesan deacon Nikolaj Kostur. The parish celebrated its Slava on this day. After Divine Liturgy, Slava banquet was held in the parish hall, where a great number of parishioners and guests were present, including the diocesan dean for the Saint Louis area, Protopresbyter-stavrophor Petar Milosevic. After the banquet, the bishop spoke with the parishioners and then returned to the Chicago area in order to serve the second and third day of Pentecost in the Monastery of the Nativity of the Mother of God in New Carlisle, IN.