Nothing of the sort. I am not talking about murder or death penalties, I am talking about the mortality of man. Adam and Eve enjoyed physical immortality until the Fall. Part of their curse for committing the First Sin was that they and their descendants would suffer death, eventually.
Since Christ sacrificed himself He opened the gates of Heaven and revealed the Resurrection. He is the firstborn of the dead. He showed us the future promise of the Resurrection of the Dead. We will all be reborn in Christ on the Last Day, except for those unfortunate few who have elected to suffer the fires of Hell.
Yup. Essentially we don’t deserve to breathe another breath when we sin. Nothing unclean can enter the presense of God and every time we sin we separate from God. There is no Sin-O-Meter where a certain amount of sins send you to Hell and doing less sins will allow one to Heaven. All sin is sin, although some worse than others they all lead to death and deserve death.
God implemented a law to be followed that was impossible to follow because it required perfection and proved this through His Holy Scriptures. For example:
Lev 20:9"'Anyone who curses their father or mother is to be put to death. Because they have cursed their father or mother, their blood will be on their own head.
Or
Numbers 15:32 While the people of Israel were in the wilderness, they found a man gathering sticks on the Sabbath day. 33 And those who found him gathering sticks brought him to Moses and Aaron and to all the congregation. 34 They put him in custody, because it had not been made clear what should be done to him. 35 And the Lord said to Moses, “The man shall be put to death; all the congregation shall stone him with stones outside the camp.” 36 And all the congregation brought him outside the camp and stoned him to death with stones, as the Lord commanded Moses.
This is how God punishes sin; with death. Now, animals were often sacrificed for sins but as the Old Testament says:
Psalm 51:16 For you will not delight in sacrifice, or I would give it; you will not be pleased with a burnt offering.
Psalm 40:6
Sacrifice and offering you did not desire-- but my ears you have opened – burnt offerings and sin offerings you did not require.
The entire point of the Sacrificial system was to point to a much greater Sacrifice that would soon come. Someone to bare our sin and shame and take it to Hell, leaving it there for us to be without blemish.
Check out Jeremiah 31:31 (OT way before Jesus) 31 “Behold, the days are coming, declares the Lord, when I will make a new covenant with the house of Israel and the house of Judah, 32 not like the covenant that I made with their fathers on the day when I took them by the hand to bring them out of the land of Egypt, my covenant that they broke, though I was their husband, declares the Lord. 33 For this is the covenant that I will make with the house of Israel after those days, declares the Lord: I will put my law within them, and I will write it on their hearts. And I will be their God, and they shall be my people. 34 And no longer shall each one teach his neighbor and each his brother, saying, ‘Know the Lord,’ for they shall all know me, from the least of them to the greatest, declares the Lord.
For I will forgive their iniquity, and I will remember their sin no more.”
Or Isaiah 53 (750 years before Christ)
53 Who has believed what he has heard from us?[a]
And to whom has the arm of the Lord been revealed?
2 For he grew up before him like a young plant,
and like a root out of dry ground;
he had no form or majesty that we should look at him,
and no beauty that we should desire him.
3 He was despised and rejected** by men;
a man of sorrows,[c] and acquainted with[d] grief;[e]
and as one from whom men hide their faces[f]
he was despised, and we esteemed him not.
4 Surely he has borne our griefs
and carried our sorrows;
yet we esteemed him stricken,
smitten by God, and afflicted.
5 But he was pierced for our transgressions;
he was crushed for our iniquities;
upon him was the chastisement that brought us peace,
and with his wounds we are healed.
6 All we like sheep have gone astray;
we have turned—every one—to his own way;
and the Lord has laid on him
the iniquity of us all.
7 He was oppressed, and he was afflicted,
yet he opened not his mouth;
like a lamb that is led to the slaughter,
and like a sheep that before its shearers is silent,
so he opened not his mouth.
8 By oppression and judgment he was taken away;
and as for his generation, who considered
that he was cut off out of the land of the living,
stricken for the transgression of my people?
9 And they made his grave with the wicked
and with a rich man in his death,
although he had done no violence,
and there was no deceit in his mouth.
10 Yet it was the will of the Lord to crush him;
he has put him to grief;[g]
when his soul makes[h] an offering for guilt,
he shall see his offspring; he shall prolong his days;
the will of the Lord shall prosper in his hand.
11 Out of the anguish of his soul he shall see* and be satisfied;
by his knowledge shall the righteous one, my servant,
make many to be accounted righteous,
and he shall bear their iniquities.*
12 Therefore I will divide him a portion with the many,[j]
and he shall divide the spoil with the strong,[k]
because he poured out his soul to death
and was numbered with the transgressors;
yet he bore the sin of many,
and makes intercession for the transgressors.**