Acts 1:8
Power The Greek word used here, dynamis, can refer to power displayed in miracles (for example, Acts 2:22; 4:7; 19:11), or (more generally) the ability of God or people to carry out their purposes (for example, Acts 3:12; 4:33). God will enable the apostles to accomplish His work, wherever and whatever it is.
My witnesses The apostles are called to testify about Christ—to proclaim the reality of His death and resurrection as well as His kingdom and lordship (compare Acts 1:3). Also, Jesus’ post-resurrection appearances to His disciples established beyond a doubt that He was physically alive, not merely present as a ghost or spiritual being.
FOR THE LOVE OF GOD 