What does Luke 22:8 mean?

It is hours before Jesus and the disciples are to celebrate the Passover. The disciples only now ask Jesus where they should eat (Mark 14:12). Traditionally, they should eat in the temple courts. But by this time too many people come for the courts to hold them all, so families slay their lambs at the temple but feast elsewhere in the city.

Preparation doesn't just mean finding a lamb and slaughtering it. It means finding a room big enough for Jesus and all twelve disciples. They must collect oil, wine, bitter herbs, and unleavened bread. Tens of thousands—if not hundreds of thousands—of travelers have flooded Jerusalem. Peter and John don't seem too concerned about this; they've seen Jesus perform some pretty amazing miracles. They simply ask Jesus where they should meet (Luke 22:9).

This is the day before Passover. Peter and John will have to find a lamb and take it to the temple courts between 2:30 and 5:30 p.m. to slaughter it. The meal must be ready by sunset: the beginning of Passover Day (Numbers 9:2–3).

This is the first mention of just Peter and John together. Until now, John's brother James and sometimes Peter's brother Andrew always accompanied them (Luke 8:51; 9:28; Mark 13:3). In the book of Acts, Peter and John will be together for significant events including the healing of a lame man at the temple, the first arrest of Jesus' disciples, and the mass conversion of Samaritans (Acts 3—4; 8:14–17).