Here the Lord seems to be Heavenly Father? Helaman 14:15

Here the Lord seems to be Heavenly Father? Helaman 14:15

15 For behold, he surely must die that ^asalvation may come; yea, it behooveth him and becometh expedient that he ^bdieth, to bring to pass the ^cresurrection of the dead, that thereby men may be brought into the ^dpresence of the Lord.

Samuel gives a sign to the wicked Nephites, namely that Jesus Christ would come to the earth, die, and be resurrected.

Answer:
The "Lord" here could mean both Heavenly Father and Jesus Christ. It's a theme that throughout the scriptures, it's not always clear which entity of the godhead is being described. That is done on purpose. It isn't an accident, and it isn't ambiguity, and it isn't possible to know exactly what was meant here by Samuel.

In fact, Jesus Christ's atonement allows us to return to live with both Heavenly Father and Jesus Christ, too. So it's kind of silly to worry to much about whether or not this verse is about the one or the other.