When Moses was describing The giants in the land in those days ,he was not implying that there were giants among regular size people, but instead ,he was really saying according to the size of man in his day and the new world, these people were giants. much bigger than the new world.Noah and his family were among the giants,that is why giants were in the earth after the flood. through generation and for what ever reason, man's genes started to weaken, resulting in smaller size humans, also trees and plants as well, which i believe was in God's plan. no longer allowing man to live for 900 to a 1000 years again. the smaller they are , the shorter the life span. Remember, God did not tell Moses about this, he showed him in visions what it was like. he say for himself. that is why he was upon the mountain for 40 days., not because of the commandments. it did not take 40 days jus to write the commandments.
