Many churches use modified portions of the Lord's Prayer to open services. For instance, some churches open by declaring "glory be to the Father, and the Son, and the Holy Ghost: as it was in the beginning, is now, and ever shall be. Amen"
Many opening prayers are used simply to acknowledge the presence of both God and the congregation. An example of this type of prayer might be "as we come together today, we give you thanks for the good gifts you give us. We ask for your guidance in our lives, and we pray that your love might live among us."
Some churches may also use a call and response affirmation of faith to open services. For instance, the preacher might declared "He is risen," expecting the congregation to answer with "He is risen indeed."
Another commonly used prayer is the Serenity Prayer. This popular mantra is as follows: "God, grant us the serenity to accept the things we cannot change; the courage to change the things we can, and the wisdom to know the difference."
Sometimes, churches opt to use prayers of thanksgiving to open a service and simultaneously express their gratitude to their god. The most common prayer of thanksgiving is the Gloria Patri, which when translated into English proclaims "praise God from whom all blessings flow, praise him all creatures here below. Praise him above, ye heavenly host. Praise Father, Son, and Holy Ghost. Amen."