The differences are ones of interpretation of the original language
Let's look at just one verse (John 3:16) as an exemplar of the variety
Good News Bible:
For God loved the world so much that he gave his only Son, so that everyone who believes in him may not die but have eternal life.
New American Standard:
For God so loved the world, that He gave His only begotten Son, that whoever believes in Him shall not perish, but have eternal life.
New Jerusalem Bible:
For this is how God loved the world: he gave his only Son, so that everyone who believes in him may not perish but may have eternal life.