From the mid-1970s through the late-1990s, the American Express company promoted their travelers' checks with the slogan, "Don't leave home without them" - making it the most successful advertising campaign in commercial history. When the bulk of financial transactions shifted from cash to credit cards, it was a simple fix to substitute "it" for "them" - continuing the effective marketing tool. However cutting-edge this approach might have seemed at the time, it was actually almost two millennia behind the times. It was Jesus who originated the slogan when He told His disciples that they should not go out into the world to represent Him until they waited in Jerusalem to receive the infilling of the Holy Spirit, "Behold, I send the promise of my Father upon you: but tarry ye in the city of Jerusalem, until ye be endued with power from on high" (Luke 24:49) - essentially "Don't leave home without it"

In this little study on the person, power, and promise of the Holy Spirit, Bible teacher Delron Shirley explores some of the vital provisions available to believers today - an expose into why Jesus tells us not to leave home without the fullness of the Holy Spirit.