The "world" is a metonym that stands for all the people who live in the world. AT: "the people did not know who he really was" (See: [[rc://en/ta/man/translate/figs-metonymy]])
# He came to his own, and his own did not receive him
"He came to his own fellow countrymen, and his own fellow countrymen did not accept him either"
# receive
This means to accept a person. When one receives a guest, they welcome them and treat them with honor in hopes of building a relationship with them.