Many scriptures indicate souls can die:
14: And the uncircumcised man child whose flesh of his foreskin is not circumcised, that
soul shall be cut off from his people; he hath broken my covenant.
Gen. 17:14
19: Behold now, thy servant hath found grace in thy sight, and thou hast magnified thy mercy, which thou hast shewed unto me in saving my life; and I cannot escape to the mountain, lest some evil take me, and I die:
20: Behold now, this city is near to flee unto, and it is a little one: Oh, let me escape thither, (is it not a little one?) and my
soul shall live.
Gen. 19:19-20
15: Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whosoever eateth leavened bread from the first day until the seventh day, that
soul shall be cut off from Israel.
Exodus 12:15
19: Seven days shall there be no leaven found in your houses: for whosoever eateth that which is leavened, even that
soul shall be cut off from the congregation of Israel, whether he be a stranger, or born in the land.
Ex. 12:19
14: Ye shall keep the sabbath therefore; for it is holy unto you: every one that defileth it shall surely be put to death: for whosoever doeth any work therein, that
soul shall be cut off from among his people.
Exodus 30:14
20: But the soul that eateth of the flesh of the sacrifice of peace offerings, that pertain unto the LORD, having his uncleanness upon him, even that
soul shall be cut off from his people.
Lev. 7:20
21: Moreover the soul that shall touch any unclean thing, as the uncleanness of man, or any unclean beast, or any abominable unclean thing, and eat of the flesh of the sacrifice of peace offerings, which pertain unto the LORD, even that
soul shall be cut off from his people.
Lev. 7:21
25: For whosoever eateth the fat of the beast, of which men offer an offering made by fire unto the LORD, even the
soul that eateth it shall be cut off from his people.
Lev. 7:25
27: Whatsoever soul it be that eateth any manner of blood, even that
soul shall be cut off from his people.
Lev. 7:27
8: Therefore every one that eateth it shall bear his iniquity, because he hath profaned the hallowed thing of the LORD: and that
soul shall be cut off from among his people.
Lev. 19:8
There are many more such scriptures but to an interested person this will be sufficient.
The proof is OVERWHELMING that the soul is
MORTAL as opposed to being
IMMORTAL.