He is a frightening being, when we recognize that his actions are who he is.
Yes, the NT makes it clear too:
Hebrews 10:31: It is a fearful thing to fall into the hands of the living God.
Many people are drawn to this part of being submissive to a God who has a monstrous side and a loving side. My mother who was a victim of domestic violence by our father became a JW due to this frightening aspect of Jehovah - a God who exacts justice and revenge. Quick to smash and kill people in the book of Judges and then a merciful side in the Book of Ruth. She faced and endured my Dad's drunken wrath due to her devotion. We kids saw her literally praying and crying and then soothing herself to sleep while talking to her God.