The most relevant thing I can find is this article at Wikipedia:

https://en.wikipedia.org/wiki/Stir-up_Sunday

—which traces the phrase "stir up your power" to a prayer in the Book of Common Prayer (1979), published by the Episcopal Church, USA:

"Stir up your power, O Lord, and with great might come among us; and, because we are sorely hindered by our sins, let your bountiful grace and mercy speedily help and deliver us...."

It is a translation of an older Latin prayer. There is a different version in the Church of England prayer book.

Bob Franke performs a song called STIR UP YOUR POWER on his album "For Real," (Flying Fish, 1986).

I couldn't find any lyrics or an online recording.