We have a God who has a heart for the vulnerable and the marginalised, and who delights in hearing our requests and petitions. So, we can go to him in prayer and ask him to help those who are homeless. Maybe each time you see or meet someone who is living on the streets you could pray for them. We can of course also stop and talk with people on the street, buy them some food, and get to know them.
Pray for the many staff and volunteers working with homeless individuals.
Pray too for our local council here in Cambridge to have wisdom as they think about how to help the homeless community in our city.