Bede : And a man went out from above... named Goliath, etc. This notable man is the devil, who, daily going out from the camps of the Philistines, that is, from the hearts of the impious to rebel against God, does not cease to provoke the pious. And rightly he is called Goliath, that is, revealed or transmigrating. For he had long been hidden from mortals, seemingly in vain troubling Saul and the men of Israel; in vain boasting in the minds of the depraved, as in the camps of the Philistines, that he was the strongest; but now, through the diligence of the boy David, he is revealed to them, who can say: For we are not ignorant of his thoughts. Long pridefully inhabiting the hearts of the wretched, he is now transmigrated through the same strong hand, that is, the Lord Savior, who said: Now is the judgment of this world, now the prince of this world will be cast out (John XII). Or certainly, he is rightly called transmigrating because he transmigrated from angelic happiness to hell through pride. But if we wish to understand him who transmigrates others, that is, transfers them from place to place, in an active sense, the name should be referred to him; because he strives to transmigrate all his followers from the land of promise to the land of perdition, from life to death. He is well described as being six cubits and a palm high, because he who boasts to be similar to the Most High, promises to preach perfect works and a blessed end through his philosophers. For God made the world in six days and rested on the seventh; and he established for mortals through the law six days of work, the seventh of rest. Indeed, Ezekiel saw in the hand of the man measuring the new city, a reed of six cubits and a palm; because the Lord measures the perfection of work in His chosen ones, as if in six cubits; and He contemplates the hope of eternal rest, which will be completed in the future, as if the part of the seventh. Therefore, what the Lord truly exhibits, the devil falsely promises. The height of Goliath, comparable to the Lord's measure, is asserted to fall. His city also, Gath, which is interpreted as "press," aptly shows the multitude of the wicked, namely the devil's city, always practiced in the torments of the good in the world. It is also worth informing those unaware that he is a bastard, who is generated by an ignoble father but a noble mother; just as conversely, one generated by a noble father, but an ignoble mother, is customarily known. — Commentary on Samuel