>>7214606He was talking to the Jews and only the Jews before he was crucified.
His crucifixion was the new covenant for the whole world (New testament). While we should strive to live right what you quoted is not what saves us today, the gentiles. Just like today we don't have to get circumcised or build an Ark.
We are saved through faith in the redeeming power of his shed blood, nothing else. If you believe in yourself to go to heaven and your good deed you are without understanding. Nobody is good enough. Only Jesus was, and is, and is to come. God almighty. Are you going to trust in yourself for your salvation or trust in God? Pray about it