Isaiah 2:9

The mean man boweth down. The words “mean” and “great” have been supplied by the translators to express the implied distinction of the Heb. ’adam, “man,” as a human being, and ’ish, “man,” as distinguished from woman. It was considered more honorable to be a “man,” ’ish, than merely a human being, ’adam, as the Hebrew of Ps. 49:2 makes clear. The meaning here is that men will be humbled and brought low before the Lord. They do not humble themselves — they are proud and lofty now — but will be humbled at the coming of the Lord (see Isa. 2:10-12).

Forgive them not. When “the day of the Lord” (v. 12) comes, sinners will have passed the time of their probation and will be beyond repentance (see Hosea 13:14; cf. Heb. 9:28). God cannot forgive them because they do not desire forgiveness.