Many pagan teachings were adopted by political Christianity during the dark ages due to the lack of bibles in the land. If the dead aren't really dead, then why is God so adamant about us not contacting the dead? Is the teaching of forever burning hell a biblical idea or a borrowed idea?  

Leviticus 19:31 

Leviticus 20:6,27 

Deuteronomy 18:10-12 

Isaiah 8:19-20 

Revelation 22:14-15 

Job 7:8-10   

Job 16:22  

Exodus 7:11 

Acts 16:16-18 

1 Chronicles 10:13 

2 Corinthians 11:13-15 

Matthew 24:4-5, 11-12, 24 

Revelation 13:14  

Revelation 16:13-15  

Revelation 18:23  

Luke 9:56 

Matthew 18:11 

2 Peter 3:9 (Ezekiel 33:11) (Isaiah 28:21) 

Nahum 1:9 

Romans 6:23 

1 peter 3:18 

psalm 31:17 

job 21:30,32 

2 peter 2:9 

2 Peter 3:6-7 

2 Thessalonians 1:7-9 2 

Peter 3:10-13 

2 Thessalonians 2:8 

Matthew 13:40-42 

john 12:48 

Revelation 22:14-15 

Revelation 20:10 

Jona 2:6 

psalm 21:9 

psalm 34:21 

psalm 37:9-10 

psalm 37:20,36 

psalm 37:38 

psalm 68:2 

2 Thessalonians 2:8 

revelation 6:16  

Luke 23:30  

Hosea 10:8 

Malachi 4:1,3 

Obadiah 1:15-16 

psalm 145:20 

2 Peter 2:6 

Luke 17:29-30 

Jude 7 

Matthew 25:41 

Jude 6 

2 Peter 2:4 

Ezekiel 28:18-19 

Revelation 21:4  

Isaiah 65:17 

Isaiah 66:22 

2 Peter 3:13 

Revelation 21:1