Keyplus, thank you, but as suspected the verses say nothing whatsoever about a specific time, although they most definitely relate to a specific people because what they do say very clearly indeed is that Jesus was interested only in the Jews. Of that there can be no doubt.
I know neither you or the Christians like to hear it, but both Christianity and Islam have hijacked the man Jesus and both have used his name shamefully to their own ends - and these verses offer perfect confirmation of that.
For anyone interested:
Matthew 10
5 These twelve Jesus sent forth, and commanded them, saying, Go not into the way of the Gentiles, and into any city of the Samaritans enter ye not:
6 But go rather to the lost sheep of the house of Israel.
15:24 But he answered and said, I am not sent but unto the lost sheep of the house of Israel.