because that, knowing God, they glorified him not as God, neither gave thanks; but became vain in their reasonings, and their senseless heart was darkened.

Let their eyes be darkened, so that they cannot see; And make their loins continually to shake.

Woe to the worthless shepherd that leaveth the flock! the sword shall be upon his arm, and upon his right eye: his arm shall be clean dried up, and his right eye shall be utterly darkened.

being darkened in their understanding, alienated from the life of God, because of the ignorance that is in them, because of the hardening of their heart;

For if God spared not angels when they sinned, but cast them down to hell, and committed them to pits of darkness, to be reserved unto judgment;

And angels that kept not their own principality, but left their proper habitation, he hath kept in everlasting bonds under darkness unto the judgment of the great day.

And bow

And Jehovah will scatter thee among all peoples, from the one end of the earth even unto the other end of the earth; and there thou shalt serve other gods, which thou hast not known, thou nor thy fathers, even wood and stone.

and I will put it into the hand of them that afflict thee, that have said to thy soul, Bow down, that we may go over; and thou hast laid thy back as the ground, and as the street, to them that go over.

I will destine you to the sword, and ye shall all bow down to the slaughter; because when I called, ye did not answer; when I spake, ye did not hear; but ye did that which was evil in mine eyes, and chose that wherein I delighted not.

General references

but Jehovah hath not given you a heart to know, and eyes to see, and ears to hear, unto this day.

They perceived not that he spake to them of the Father.