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. AG 192.1
Christ's visible presence was about to be withdrawn from the disciples, but a new endowment of power was to be theirs. The Holy Spirit was to be given them in its fullness, sealing them for their work.7The Acts of the Apostles, 30. AG 192.2
In obedience to Christ's command, they waited in Jerusalem for the promise of the Father—the outpouring of the Spirit. They did not wait in idleness. The record says that they were “continually in the temple, praising and blessing God” (Luke 24:53). They also met together to present their requests to the Father in the name of Jesus.... Higher and still higher they extended the hand of faith, with the mighty argument, “It is Christ that died, yea rather, that is risen again, who is even at the right hand of God, who also maketh intercession for us” (Romans 8:34).... AG 192.3
The disciples prayed with intense earnestness for a fitness to meet men and in their daily intercourse to speak words that would lead sinners to Christ. Putting away all differences, all desire for the supremacy, they came close together in Christian fellowship. They drew nearer and nearer to God.... AG 192.4
These days of preparation were days of deep heart searching. The disciples felt their spiritual need, and cried to the Lord for the holy unction that was to fit them for the work of soul saving. They did not ask for a blessing for themselves merely. They were weighted with the burden of the salvation of souls. They realized that the gospel was to be carried to the world, and they claimed the power that Christ had promised. AG 192.5
During the patriarchal age the influence of the Holy Spirit had often been revealed in a marked manner, but never in its fullness. Now, in obedience to the word of the Saviour, the disciples offered their supplications for this gift, and in heaven Christ added His intercession. He claimed the gift of the Spirit, that He might pour it upon His people.8The Acts of the Apostles, 35-37. AG 192.6