KJV - And when he had considered the thing, he came to the house of Mary the mother of John, whose surname was Mark; where many were gathered together praying.
ASV - And when he had considered `the thing', he came to the house of Mary the mother of John whose surname was Mark; where many were gathered together and were praying.
BBE - And when he became clear about this, he went to the house of Mary, the mother of John named Mark, where a number of them had come together for prayer.
WEB - Thinking about that, he came to the house of Mary, the mother of John whose surname was Mark, where many were gathered together and were praying.
YLT - also, having considered, he came unto the house of Mary, the mother of John, who is surnamed Mark, where there were many thronged together and praying.