The Bible says...
"For all have sinned and fall short of the glory of God...the wages of sin is death." --Romans 3:23; 6:23 (NIV)
"Therefore [after Adam sinned] the LORD God sent him forth from the garden of Eden..." --Genesis 3:23a (KJV)
"But your iniquities have separated you from your God; and your sins have hidden His face from you, so that He will not hear." --Isaiah 59:2 (NKJV)