Does anyone know why there had to be a death for sin and why it had to be God???
A covenant in the day’s of old had a deep and personal meaning to everyone involved. To break a covenant meant death in most cases to the party who broke the covenant. This is such the case and the reason god had to come in the flesh and die in place of man. If Avram had passed between the animal parts as did God then man would have been the one to of died for breaking the covenant. As we read Avram was in a deep sleep while God in all His glory passed through the animal parts. God promised Avram he would become a great nation more numerous than the grains of sands or the star’s in the Heavens. Avram slept and dreamed of His descendants who would spend 400 years as slaves in Egypt. God made this covenant knowing full well man would some day break this covenant and a death would be required. It wasn’t until what was to be a wedding feast at Mt Sinai and man went whoring in the 40 days Moses was on the mountain top with God that the covenant was broken. The number 40 in Hebrew means testing, trial, and tribulation. It was at that point God decided His people would spend this amount of time [40 years] traveling in the wilderness receiving his grace and mercy but under the penalty of death. The substitute for death was the animal sacrifice until the time of the lord when he came in the flesh to redeem those who where willing to repent and obey his commandments.
 
Gen 15:6-21
(vi) 7 Then he said to him, “I am Adonai, who brought you out from Ur-Kasdim to give you this land as your possession.” 8 He replied, “Adonai, God, how am I to know that I will possess it?” 9 He answered him, “Bring me a three-year-old cow, a three-year-old female goat, a three-year-old ram, a dove and a young pigeon.” 10 He brought him all these, cut the animals in two and placed the pieces opposite each other; but he didn’t cut the birds in half. 11 Birds of prey swooped down on the carcasses, but Avram drove them away.
12 As the sun was about to set, a deep sleep fell on Avram; horror and great darkness came over him. 13 Adonai said to Avram, “Know this for certain: your descendants will be foreigners in a land that is not theirs. They will be slaves and held in oppression there four hundred years. 14 But I will also judge that nation, the one that makes them slaves. Afterwards, they will leave with many possessions. 15 As for you, you will join your ancestors in peace and be buried at a good old age. 16 Only in the fourth generation will your descendants come back here, because only then will the Emori be ripe for punishment.”
17 After the sun had set and there was thick darkness, a smoking fire pot and a flaming torch appeared, which passed between these animal parts. 18 That day Adonai made a covenant with Avram: “I have given this land to your descendants — from the Vadi of Egypt to the great river, the Euphrates River — 19 the territory of the Keni, the K’nizi, the Kadmoni, 20 the Hitti, the P’rizi, the Refa’im, 21 the Emori, the Kena‘ani, the Girgashi and the Y’vusi.”
Does anyone know why there had to be a death for sin and why it had to be God???
A covenant in the day’s of old had a deep and personal meaning to everyone involved. To break a covenant meant death in most cases to the party who broke the covenant. This is such the case and the reason god had to come in the flesh and die in place of man. If Avram had passed between the animal parts as did God then man would have been the one to of died for breaking the covenant. As we read Avram was in a deep sleep while God in all His glory passed through the animal parts. God promised Avram he would become a great nation more numerous than the grains of sands or the star’s in the Heavens. Avram slept and dreamed of His descendants who would spend 400 years as slaves in Egypt. God made this covenant knowing full well man would some day break this covenant and a death would be required. It wasn’t until what was to be a wedding feast at Mt Sinai and man went whoring in the 40 days Moses was on the mountain top with God that the covenant was broken. The number 40 in Hebrew means testing, trial, and tribulation. It was at that point God decided His people would spend this amount of time [40 years] traveling in the wilderness receiving his grace and mercy but under the penalty of death. The substitute for death was the animal sacrifice until the time of the lord when he came in the flesh to redeem those who where willing to repent and obey his commandments.
 
Gen 15:6-21
(vi) 7 Then he said to him, “I am Adonai, who brought you out from Ur-Kasdim to give you this land as your possession.” 8 He replied, “Adonai, God, how am I to know that I will possess it?” 9 He answered him, “Bring me a three-year-old cow, a three-year-old female goat, a three-year-old ram, a dove and a young pigeon.” 10 He brought him all these, cut the animals in two and placed the pieces opposite each other; but he didn’t cut the birds in half. 11 Birds of prey swooped down on the carcasses, but Avram drove them away.
12 As the sun was about to set, a deep sleep fell on Avram; horror and great darkness came over him. 13 Adonai said to Avram, “Know this for certain: your descendants will be foreigners in a land that is not theirs. They will be slaves and held in oppression there four hundred years. 14 But I will also judge that nation, the one that makes them slaves. Afterwards, they will leave with many possessions. 15 As for you, you will join your ancestors in peace and be buried at a good old age. 16 Only in the fourth generation will your descendants come back here, because only then will the Emori be ripe for punishment.”
17 After the sun had set and there was thick darkness, a smoking fire pot and a flaming torch appeared, which passed between these animal parts. 18 That day Adonai made a covenant with Avram: “I have given this land to your descendants — from the Vadi of Egypt to the great river, the Euphrates River — 19 the territory of the Keni, the K’nizi, the Kadmoni, 20 the Hitti, the P’rizi, the Refa’im, 21 the Emori, the Kena‘ani, the Girgashi and the Y’vusi.”