Luke 9 New Living Translation
1 One day Jesus called together his twelve disciples and gave them power and authority to cast out all demons and to heal all diseases. 2Then he sent them out to tell everyone about the Kingdom of God and to heal the sick. 3“Take nothing for your journey,” he instructed them. “Don’t take a walking stick, a traveler’s bag, food, money, or even a change of clothes. 4Wherever you go, stay in the same house until you leave town. 5And if a town refuses to welcome you, shake its dust from your feet as you leave to show that you have abandoned those people to their fate.” 6So they began their circuit of the villages, preaching the Good News and healing the sick.
Sounds like a multi-days journey of walking. For cleanliness reason, shouldn't they have taken a change of clothes?