"In the beginning God created the heavens and the earth" (Genesis 1:1). The world and all its fullness, He founded them (Psalm 89:11). Sun, moon, and stars; Morning and evening; Sky and land; Earth and seas; Seed trees of all kinds; Seasons and years; Living creatures and mankind He created (Genesis 1:1-31). "the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living being" (Genesis 2:7). Man was created according to God's likeness and received dominion over all the earth and every living creature (Genesis 1:26-28).
The Lord God commanded Adam and his wife Eve to eat of all trees in Eden, the garden of God, except from the tree of the knowledge of good and evil (Genesis 2:15-17). The serpent who was "more cunning than any beast of the field which the LORD God had made" (Genesis 3:1) came to Eve and enticed her into eating from the forbidden tree. Eve ate the fruit of the tree and gave it to her husband who also ate (Genesis 3:6).
Consequences of sin
The Lord God had warned by telling man: "of the tree of the knowledge of good and evil you shall not eat, for in the day that you eat of it you shall surely die" (Genesis 2:17). But man deliberately chose to infringe God's law and follow the way of his heart.
Because of their disobedience, God sentenced Eve to bring forth children in great pain and be ruled over by her husband (Genesis 3:16). The ground became cursed, and from that moment, man had to work the ground for food until the day he returns to it; For out of the ground he was taken and to dust he would return (Genesis 3:17-19).
Sin and death
On the day Adam and Eve sinned against God, death entered the world. But it's was not just about physical death.
Sin is what separates us from God (Isaiah 59:2), and like a soiled robe or garment, it keeps us from being acceptable before Him (Rev 3:4). Sinners will not inherit the Kingdom of God, but will be cast into the lake of fire that is the second death (Rev 21:6-8).
Remission of sin & blood sacrifices
After man was expelled from the garden of Eden and began to multiply on the face of the earth, the special relationship he had with his Creator was long gone and evil grew greatly in his heart (Genesis 6:5).
People started to call upon the name of the Lord (Genesis 4:26), and offered animal blood sacrifices to God to obtain forgiveness for their sins.
Sacrifices and animal blood where used to cover up men's sin, for according to the law (given by God to His prophet Moses) almost all things are purified with blood, and without shedding of blood there is no remission of sin (Hebrews 9:22)
The salvation of mankind
Because man had departed from God - and sin totally desensitized him from the things of God - he was heading to eternal damnation. the LORD God in his infinite love gave his only son Jesus that whoever believes in Him should not perish but have everlasting life (John 3:16).
Jesus the Son of God come on earth over 2,000 years ago and dwelt among us (John 1:14).
He healed the sick, the demon-possessed, the blind, the lame, raised the dead... Preached the good new of the Kingdom of Heaven. He displayed the love and mercy of God for His creation, unfolding the plan of salvation of the Lord.
Jesus offered Himself up on a cross and shed His blood to redeem mankind to God.
Since then, whoever calls on the name of the Lord shall be saved (Romans 10:13)