The words "anger" and "wrath" mean basically the same thing and are used together to emphasize how dangerous God can be. (See: [[rc://en/ta/man/translate/figs-doublet]])
## the mountain of your holiness ##
The word "holiness" here may refer to God's holy temple. AT: "the mountain where your holy temple is" or "your holy mountain".
## our sins ... our ancestors ##
The sins and ancestors of Daniel and Israel, not of God.