[Diego1618]

That was during Christ's life. The Risen Christ instructed them--all of them--differently at the end of †Matthew's Gospel.

Let's look at [John 21:15-17] So when they had dined, Jesus saith to Simon Peter, Simon, son of Jonas, lovest thou me more than these? He saith unto him, Yea, Lord; thou knowest that I love thee. He saith unto him, Feed my lambs. e saith to him again the second time, Simon, son of Jonas, lovest thou me? He saith unto him, Yea, Lord; thou knowest that I love thee. He saith unto him, Feed my sheep. He saith unto him the third time, Simon, son of Jonas, lovest thou me? Peter was grieved because he said unto him the third time, Lovest thou me? And he said unto him, Lord, thou knowest all things; thou knowest that I love thee. Jesus saith unto him, Feed my sheep.

Just who were these sheep? It was here in Galilee that Our Lord gave the Apostles their commission again. Our Lord had previously indicated who his commission was directed to: [Matthew 15:24] But he answered and said, I am not sent but unto the lost sheep of the house of Israel. Coincidently, these were the same folks who He had directed the Apostles to go and evangelize in [Matthew 10:5-6].

[Matthew 28:19] Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost. Nations:1484. ethnos (eth'-nos)a race (as of the same habit), i.e. a tribe; specially, a foreign (non-Jewish) one. And again, scripture confirms scripture. Our Lord had instructed the twelve to go to the tribes (House of Israel). The fact that modern translations show this to be "Nations" just shows a theological bias. Why would Our Lord tell the Apostles to not go among the Gentiles and then turn around and tell them to do exactly what He had said not to do? More importantly.....why were the Apostles....6 years after the crucifixion, so indignant and upset that Peter had been dealing with Gentiles [Acts 10:45][Acts 11:1-3] if The Lord had told them to do it?

[Petronski]

Our Lord had previously indicated who his commission was directed to: [Matthew 15:24] But he answered and said, I am not sent but unto the lost sheep of the house of Israel.

And yet moved by the woman's faith, He healed her daughter as she had sought:

Mat 15:28 Then Jesus answering, said to her: O woman, great is thy faith: be it done to thee as thou wilt: and her daughter was cured from that hour.

Did He not consider her daughter one of His sheep?

Your attempt fails.

[Petronski]

. Why would Our Lord tell the Apostles to not go among the Gentiles and then turn around and tell them to do exactly what He had said not to do?

Because that is what He wanted? A mission to the Jews before the Resurrection and a mission to all the world afterwards?

Who are you or I or anyone to tell Him what He can want?

[Petronski]

More importantly.....why were the Apostles....6 years after the crucifixion, so indignant and upset that Peter had been dealing with Gentiles [Acts 10:45][Acts 11:1-3] if The Lord had told them to do it?

Because they still (wrongly) believed circumcision (and other works of the law) was also required for salvation. You might recall †Paul writing extensively in the epistles about how works of the law are no longer necessary.

Acts 11 makes this quite clear.