'Enigma' in the Bible

Not only that, but I have seen the wicked approaching and entering the temple, and as they left the holy temple, they boasted in the city that they had done so. This also is an enigma.

Here is another enigma that occurs on earth: Sometimes there are righteous people who get what the wicked deserve, and sometimes there are wicked people who get what the righteous deserve. I said, "This also is an enigma."