Leviticus 17:14

For [it is] the life of all flesh
Of every animal:

the blood of it [is] for the life thereof;
for the production, preservation, and continuance of life; that on which life depends, as Jarchi observes:

therefore I said unto the children of Israel, ye shall eat the blood
of no manner of flesh;
of beasts or birds, whose flesh was fit for food; but their blood was not to be eaten, for the reasons before given:

for the life of all flesh [is] the blood thereof;
which is repeated, that it might be observed and taken notice of, as that in which the force of the reason lay for giving this law:

whosoever eateth it shall be cut off;
by death, whether he be an Israelite or a proselyte of righteousness; wherefore if this law was now in force, its penalty also would be continued, whereas it is not, and which shows the abrogation of it. Also (See Gill on Leviticus 17:4).