'Before the World Was' in the Bible

Then will the King say to those on his right, Come, you who have the blessing of my Father, into the kingdom made ready for you before the world was:

And now, O Father, glorify thou me with thine own self with the glory which I had with thee before the world was.

but we speak Gods wisdom in a mystery, the hidden wisdom, which God determined on before the world was, for our glory;

which saved us, and called us with a holy calling, not according to our deeds, but according to his own purpose and grace, which grace was given us through Christ Jesus before the world was,

For Christ was previously known [by God, even] before the world was created, yet was not fully revealed for your benefit until [these] final times.