Christians sometimes get themselves in a knot over our attitude to the world.
"Do not love the world".
"God so loved the world".
"The world is under the control of the evil one". etc. etc.
The answer is actually fairly simple - the word world doesn't always mean the same thing in English.
Sometimes it means the physical globe. Sometimes it means every human being. Sometimes it means everywhere where humans live. Sometimes... well you get the picture. You have to understand the word from the context.
The old pleasantry, "It's a small world!" "Yes, till you start to try and paint it!" illustrates this point.
Anyway, long story short, as they say, here's some links to youtube videos of a Ligonier conference on the world, where some of the Western World's finest worthies join forces to consider the world.
To the World, Folly and a Stumbling-block : Steven Lawson
The End and Purpose of the World : R C Sproul
God so Loved the World : Sinclair Ferguson
Do not Love the World : Robert Godfrey
The World, the Flesh and the Devil : Voddie Baucham
War of the Worldviews : R C Sproul Jr
Saving the World : Derek Thomas
This is my Father's World : Sinclair Ferguson
Against the World : Robert Godfrey
Out of this world : Albert Mohler
How, then, should I live in this World : Derek Thomas