I hadn't put these together before, but I expect they belong together. Again we see blessings here based on faithfulness in premortality. The Lord didn't arbitrarily and unfairly decide that the gentiles would not at any time hear his voice. Abraham was given a promise that he would be the father of the faithful, that is, that the most obedient spirit children would be born into his posterity. In these days the logical consequence to that are considered unspeakable, but they are plain enough. Those born into the gentile lines were the less righteous spirits.
Those who were most righteous in the spirit world were given foreordinations and promises. Among those was the possibility that they might hear the Lords voice directly here in mortality. Those spirits who did not live up to the privilege of receiving the promise of being born into the house of Israel also will not receive the opportunity to hear his voice in mortality.
3 Nephi 15:23 And they understood me not that I said they shall hear my voice; and they understood me not that the Gentiles should not at any time hear my voice—that I should not manifest myself unto them save it were by the Holy Ghost.
24 But behold, ye have both heard my voice, and seen me; and ye are my sheep, and ye are numbered among those whom the Father hath given me.
Mark 7: 25 For a certain woman, whose young daughter had an unclean spirit, heard of him, and came and fell at his feet:
26 The woman was a Greek, a Syrophenician by nation; and she besought him that he would cast forth the devil out of her daughter.
27 But Jesus said unto her, Let the children first be filled: for it is not meet to take the children’s bread, and to cast it unto the dogs.
28 And she answered and said unto him, Yes, Lord: yet the dogs under the table eat of the children’s crumbs.
29 And he said unto her, For this saying go thy way; the devil is gone out of thy daughter.
30 And when she was come to her house, she found the devil gone out, and her daughter laid upon the bed.
Matthew 15:22 And, behold, a woman of Canaan came out of the same coasts, and cried unto him, saying, Have mercy on me, O Lord, thou Son of David; my daughter is grievously vexed with a devil.
23 But he answered her not a word. And his disciples came and besought him, saying, Send her away; for she crieth after us.
24 But he answered and said, I am not sent but unto the lost sheep of the house of Israel.
25 Then came she and worshipped him, saying, Lord, help me.
26 But he answered and said, It is not meet to take the children’s bread, and to cast it to dogs.
27 And she said, Truth, Lord: yet the dogs eat of the crumbs which fall from their masters’ table.
Matt 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.
Now there are many Israelites who were choice spirits in the premortal life and threw away everything here in mortality. There were Israelites who killed the prophets and there were Israelites that crucified the Son of God. The Book of Mormon except for the book of Ether is a story about Israelites and yet it has plenty of wickedness as well as righteousness in it. It is possible to completely throw away the blessings obtained in the premortal life and we see that constantly in the scriptures.
And on the other hand, there are those who are born gentiles and repent and receive great spiritual honors in this life. There is Ruth, who though a gentile was allowed to have the Son of God be among her posterity. What an incredible honor that is. There is Cornelius, who the Holy Ghost converted and who Peter, by vision from God, knew needed to be baptized into the true church.
That is the meaning of the scripture that there are many who were first who shall be last and many who are last who shall be first. What we did in the premortal life is nothing compared to what we are going to choose to do now. If we choose exaltation here, it doesn't matter what we chose there. If we choose damnation here, it is irrelevant what we choose there.
What matters right now is what we are going to choose to do right now.