I am not a Biblical scholar, but found these two passages to be extremely similar. Am I missing something?
While niv and most modern versions have Job say, I despise myself (6), myself is not in the Hebrew, and it is more probable that he despises the words of abuse he has hurled at God. Likewise what he has to repent of is not any sin for which his suffering has come upon him, for it is axiomatic in the book that Job is no sinner; he can repent only of the extreme language, words ‘without knowledge’ he has uttered. But perhaps it is better still to take the word translated despise as ‘melt’, as did the lxx, i.e. ‘I melt into nothingness’, the feeling of a creature before his creator, and to take the word for repent as ‘comfort’, i.e. ‘I am comforted though still sitting upon dust and ashes’ (cf. 2:8). What the friends have failed to accomplish through their presence (2:11) and their speeches (cf. 16:2; 21:34) God has done by his personal intervention. Job is still suffering, still upon the ash-heap, but his bitterness is relieved and his tension is resolved by his encounter with God.
F. F. Bruce, New International Bible Commentary (Grand Rapids, MI: Zondervan Publishing House, 1979), 550.
Does Job despise himself (6)? Myself is not in the Hebrew, and it is more probable that Job despises the words of abuse he has hurled at God. And what does he repent of (6)? It cannot be some sin, because we have known from the beginning that Job is no sinner, he can repent only of the extreme language he has used or of his ignorance. But perhaps it is better still to take the word translated despise as ‘melt’, i.e. ‘I melt into nothingness’, the feeling of a creature before his Creator, and to take the word for repent as ‘comfort’, i.e. ‘I am comforted, though still sitting upon dust and ashes’ (cf. 2:8). Job is still suffering, still upon the ash-heap, but his bitterness is relieved and his tension is resolved by his encounter with God.
David J. A. Clines, “Job,” in New Bible Commentary: 21st Century Edition, ed. D. A. Carson et al., 4th ed. (Leicester, England; Downers Grove, IL: Inter-Varsity Press, 1994), 484.