We need the enduement of power from on high. Christ had previously informed the disciples that without Him they could do nothing. When He gave them the commission to convert the world, He added, "But tarry ye in Jerusalem till ye be endued with power from on high. Ye shall be baptized with the Holy Ghost not many days hence. Lo, I send upon you the promise of My Father." This baptism of the Holy Ghost, this thing promised by the Father, this enduement of power from on high, Christ has expressly informed us is the indispensable condition of performing the work which he has set before us.