Charles H. Spurgeon on Psalms 40:6

Mine ears hast thou opened. If it is to be said that the apostle to the Hebrews read this differently, I answer, this does not appear to me. It is true, he found a different, but corrupted translation (wtia, ears, as the learned have observed, having been changed into swma, body) in the LXX, which was the version then in use; and he was obliged to quote it as he found it, under the penalty, if he altered it, of being deemed a false quoter. He therefore took the translation as he found it, especially as it served to illustrate his argument equally well. Upon this quotation from the LXX the apostle argues, Ps 40:9, "He, (Christ) taketh away the first (namely, legal sacrifices), that he may establish the second" (namely, obedience to God's will), in offering himself a sacrifice for the sins of mankind; and thus he must have argued upon a quotation for the Hebrew text as it stands at present. Green, quoted in S. Burder's "Scripture Expositor."