The devil (also known as Lucifer or Satan) was cast out of Heaven for rebelling against God.Certainly no human being has done the same amount of bad in this world as the devil has, but failing to accept the sacrifice Jesus made for your sins at Calvary and continuing to live in sin puts you in direct rebellion against God: the same thing for which Satan was thrown out of Heaven.Since we've all sinned and come short of the glory of God (Romans ), you can understand why the Bible says in Romans that NONE are righteous (good in God's sight).Man's "good" deeds don't outweigh his bad ones.
You didn't "see" anything in order for you to believe things were going to be OK. The conscience God gave you bears witness with His moral Law that it is wrong to murder, steal, commit adultery, and lie. Even adultery is still on the books in some places; it WILL result in a court-martial in the military. He will not at all acquit the wicked (Nahum 1:3) and by no means clear the guilty (Exodus 34:7).
All your righteousness is as filthy rags before God (Isaiah 64:6). Hebrews tells us that without shedding of blood there is no remission (forgiveness of sins).
God told Noah in Genesis 9:4 that life is in the blood. Red blood cells transport nutrients/oxygen to your body's tissues. Even the movement of blood through your body is necessary for regulating body temperature. So, here we are: sinful mankind separated from our Creator.
There are true/definite limits to biological change. God set forth life according to "kinds." Where are the transitional-phase creatures (i.e.
those between the stage of chimps and humans) for us to observe today?