¥Hebrews 10 has "a body you prepared for me," but Psalm 40 has "my
ears you have pierced."
¥It turns out that Hebrews 10 is following the ancient Greek translation
which we call the Septuagint, often
abbreviated "LXX."
¥Some have claimed that this was a mistranslation, a copying
error, or even that the writer of Hebrews
intentionally changed the text.