9 About noon the following day as they were on their journey and approaching the city, Peter went up on the roof to pray. 10 He became hungry and wanted something to eat, and while the meal was being prepared, he fell into a trance. 11 He saw heaven opened and something like a large sheet being let down to earth by its four corners. 12 It contained all kinds of four-footed animals, as well as reptiles and birds. 13 Then a voice told him, “Get up, Peter. Kill and eat.” 14 “Surely not, Lord!” Peter replied. “I have never eaten anything impure or unclean.” 15 The voice spoke to him a second time, “Do not call anything impure that God has made clean.” 16 This happened three times, and immediately the sheet was taken back to heaven.
We must not put it off from day to day but go quickly wherever God calls us, as soon as we hear his voice.
Peter went to pray about noon according to his custom, for when we are busy almost all day it is good to have certain times appointed for prayer–not because we are tied to set times, but in case we should forget about prayer when it should be our priority. We should think in the same way about time as we do about place.