The ability to play a guitar with great skill.

The term takes on a deeper meaning if witnessing an inspiring performance in front of or inside a church or cathedral.

“He Jesus could’ve played guitar better than Hendrix” - Jesus Was Way Cool by King Missile
Ryan Hall just busted out some amazing licks in front of the Cathedral in Santiago. Man that guy has got some Jesus Fingers.
by DC Derailleurs October 6, 2019
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When someone covers their finger in superglue, and then covers it in cocaine, and fingers someone. The fingeree instantly hits the G-spot.
Midway through intercourse:

Man: One second, babe!
Random girl:Okay...
Man: SHU-LAAH!
Girl: *Instant orgasm*
Other guy: Woah! Jesus Finger! Where's my camera?
by S3X0NF11R3 December 6, 2010
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