Opening Words For Worship Service
Scripture For Opening Church Service
The best I have heard have always had something to do with any theme, or overall messsage that may be the focus of the worship time that day. Big life after death album. 
If that cannot be done with certainty, say, a guest speaker is coming to speak.then we could take a hind from the Psalms. I will enter His gates with thanksgiving in my heart; I will enter his courts with praise.or, if we are seeking forgiveness.the word says to 'take words with you ' and appear before God.we may use words of repentance. Solomon prayed a wonderful prayer of repentance, for himself and his people.and God honored their sincerity. Be creative, be attentive to the Holy Spirit.the words.as promised.will be given to you in that hour. Having the pump primed with the cool, clear water of the Word of God is a great first step, though. Hebrews 13:15 'Through Jesus, therefore, let us continually offer to God a sacrifice of praise—the fruit of lips that confess his name.'