Answer:
It is believed that Enoch (Gen 5:22~24) built it as a testimony for God (Jehovah). God was the Architect. It is believed they used atomic power to build it. Mathematicians probed at it from every angles and concurred that God alone could have have designed something so perfectly centered on the center of the earth.
It is the last standing of the seven wonders. The open sarcophagus inside the King's Chamber depicts the resurrection of our Lord. That is why it is empty. In fact, everything in this massive monument has to do with the Word of God.
Even scientists and skeptics have admitted that to so perfectly align this magnificent piece of art perfectly to where it is located, one would have to be out in space to do so.
All of the other pyramids were work of the Egyptians and were intended for burial but the Great Pyramid was solely built for a memorial to God. It is known as the second Bible. The first One being the Stars and the third (and last One) is the Bible as we know it today.
there is also a whole other belief of the Egyptians