'Ashamed' in the Bible

I did this because I was ashamed to ask the king for infantry and cavalry to protect us from enemies during the journey, since we had told him, “The hand of our God is gracious to all who seek Him, but His great anger is against all who abandon Him.”

And I said:My God, I am ashamed and embarrassed to lift my face toward You, my God, because our iniquities are higher than our heads and our guilt is as high as the heavens.