Hebrews 11:3 Through faith we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear.

You were not here prior to the earth being created. You did not see the Lord speak the world into existence. You do not have first hand knowledge of how the Lord took nothing and created everything we see. Yet even though you did not see the creation, by faith, you believe that there is a Creator who by intelligent design made all things that we see.

Because we were created by God, this means that we are accountable to HIM. There are those who do not want to believe that they are accountable to God and as such, they have devised ways to form a belief that the world was not created. They were not here when evolution occurred and as such, they have to by faith, believe that the world evolved.