Hebrews 10:5

Verse 5. Wherefore. This word shows that the apostle means to sustain what he had said by a reference to the Old Testament itself. Nothing could be more opposite to the prevailing Jewish opinions about the efficacy of sacrifice than what he had just said. It was, therefore, of the highest importance to defend the position which he had laid down by authority which they would not presume to call in question, and he therefore makes his appeal to their own Scriptures. When he cometh into the world. When the Messiah came, for the passage evidently referred to him.