The Demon Problem the Bible Does

And it came to pass when men began to be numerous upon the earth, and daughters were born to them,

Genesis 6:1, Septuagint

that the sons of God having seen the daughters of men that they were beautiful, took to themselves wives of all whom they chose.

Genesis 6:2, Septuagint

Now the giants were upon the earth in those days; and after that when the sons of God were wont to go in to the daughters of men, they bore children to them, those were the giants of old, the men of renown.

Genesis 6:4, Septuagint

And in the third week of this jubilee the unclean demons began to lead astray the children of the sons of Noah; and to make to err and destroy them.

Jubilees 10:1, R. H. Charles

And Thou knowest how Thy Watchers, the fathers of these spirits, acted in my day: and as for these spirits which are living, imprison them and hold them fast in the place of condemnation, and let them not bring destruction on the sons of thy servant, my God; for these are malignant, and created in order to destroy.

Jubilees 10:5, R. H. Charles

And now, the giants, who are produced from the spirits and flesh, shall be called evil spirits upon the earth, and on the earth shall be their dwelling.

Enoch 15:8, R. H. Charles