A.T. Robertson Commentary Hebrews 10:17

"And their sins and their iniquities will I remember no more." — Hebrews 10:17 (ASV)

Here again the writer adds "their iniquities" (των ανομιων) to "sins" of 8:12 and reads μνησθησομα (first future passive) with ου μη rather than μνησθω (first aorist passive subjunctive) of 8:12 (the more common idiom). It is uncertain also whether the writer means verse 17 to be the principal clause with 15,16 as subordinate or the whole quotation to be subordinate to μετα το ειρηκενα of verse 15 with anacoluthon in verse 18. At any rate verse 17 in the quotation does not follow immediately after verse 16 as one can see in 8:10-12 (skipping part of 8:10 and all of 8:11).