Read Psalms 103:12  This interesting verse was written over 2,000 years before scientists knew that the earth was round!  The ancient men, including David, did not know that the earth was round. But God did!  And He is the one who told King David what to write!  The directions mentioned in our verse are called the cardinal directions: north, south, east, and west.  David knew these directions, but he didn't know what was special about them.  You see, east and west goes around the equator and are directions.  But north and south are exact points on our earth: there is a north pole and there is a south pole, and they are exactly 7,901 miles apart.  But east and west are directions, not points!  You can go east, and go east, and go east, until you go all the way around the equator, and you are still going east!  There is not a point on the earth that is called the east pole or the west pole.  Isn't it wonderful that God said that He would remove our sins as far as the east is from the west, and not as far as the north is from the south!  God has removed our sins so far that no one will ever find them.  I am glad that God is so great that He can actually forget our sins!  Isn't He good!  Get your mother or your father to show you a globe, which is a model of our earth, and explain our verse.