1 Kings 18:36-39 NIV
At the time of sacrifice, the prophet Elijah stepped forward and prayed: “Lord, the God of Abraham, Isaac and Israel, let it be known today that you are God in Israel and that I am your servant and have done all these things at your command.  Answer me, Lord, answer me, so these people will know that you, Lord, are God, and that you are turning their hearts back again.”  Then the fire of the Lord fell and burned up the sacrifice, the wood, the stones and the soil, and also licked up the water in the trench.  When all the people saw this, they fell prostrate and cried, “The Lord—he is God! The Lord—he is God!”
The prophets of Baal called on Baal and were met only with silence. Elijah called on him and his fire poured down from heaven. When we gather to worship, we worship not an non-existent god, or an absent god, but a living powerful God.
Pray for Sunday, that when we gather we might encounter God in our midst!