There was something fundamentally anomalous about their gazing up into the sky when they had been commissioned to go to the end of the earth. It was the earth not the sky which was to be their preoccupation. Their calling was to be witnesses, not stargazers. The vision they were to cultivate was not upwards in nostalgia to the heaven which had received Jesus, but outwards in compassion to a lost world which needed him. It is the same for us. Curiosity about heaven and its occupants, speculation about prophecy and its fulfilment, an obsession with ‘times and seasons’ - these are aberrations which distract us from our God-given mission. Christ will come personally, visibly, gloriously. Of that we have been assured. Other details can wait. Meanwhile, we have work to do in the power of the Spirit.
(John Stott, The Message of Acts, Bible Speaks Today, IVP 1990)
