We can charge up the atmosphere when we come in as ONE, singing praises, thanking as ONE.

2 Chronicles 5:11-14 (NKJV)

11 And it came to pass when the priests came out of the Most Holy Place (for all the priests who were present had sanctified themselves, without keeping to their divisions),
12 and the Levites who were the singers, all those of Asaph and Heman and Jeduthun, with their sons and their brethren, stood at the east end of the altar, clothed in white linen, having cymbals, stringed instruments and harps, and with them one hundred and twenty priests sounding with trumpets—
13 indeed it came to pass, when the trumpeters and singers were as one, to make one sound to be heard in praising and thanking the LORD, and when they lifted up their voice with the trumpets and cymbals and instruments of music, and praised the LORD, saying:

“For He is good,
For His mercy endures forever,”

that the house, the house of the LORD, was filled with a cloud,

14 so that the priests could not continue ministering because of the cloud; for the glory of the LORD filled the house of God.

The congregation moved together in unity to praise and thank the Lord, and the glory of the Lord filled the temple, filled His house.

For the Evangelistic concert later, let's charge up the atmosphere as a body of believers, worshipping Daddy as ONE and praise Him as ONE, out loud! That God's Presence shall fill the house, then the house shall be filled with the cloud, then the manifestation of His glory, which is... the salvation of many pre-believers shall come! AMEN!!!