To answer this question, we need to have a better understanding of the meaning of holiness.
Many people think of holiness only in terms of moral purity or righteousness.
While this is part of the meaning of holiness, the primary meaning is separation, as we learned in 2 Corinthians 6 . When Israel was called a holy nation, it was set apart from other nations. This did not mean every person was morally pure, but they were set apart or separated from the ungodly people around them. God is holy in that He is different from anything else. He is infinite and transcendent, and we cannot think of Him in terms of creatureliness.