hast corrupted. didst corrupt. When this took place we are not told. It was before Genesis 3:11; Matthew 13:35.
I will cast thee. I did cast thee.
ground. earth, Hebrew. eretz, (with Art.)
Related Commentaries of Ezekiel 28:17
Ezekiel 28:17
17 Thine heart was lifted up because of thy beauty, thou hast corrupted thy wisdom by reason of thy brightness: I will cast thee to the ground, I will lay thee before kings, that they may behold thee.