On the last day of the feast, the great day, Jesus stood up and cried out, "If anyone thirsts, let him come to me and drink."
'The wedding feast is ready, but those invited were not worthy. Go therefore to the main roads and invite to the wedding feast as many as you find.’ And those servants went out into the roads and gathered all whom they found, both bad and good. So the wedding hall was filled with guests.
Again Jesus spoke to them, saying, "I am the light of the world. Whoever follows me will not walk in darkness, but will have the light of life."
I am the door. If anyone enters by me, he will be saved...
Peter didn't just ask wealthy people to come forward; he didn't just ask popular people to come forward; he didn't just ask "good" people to come forward. He said that Jesus' gift is for everyone who will accept it.