But Jesus, as we see, has obtained a ministry as far excelling theirs, as the Covenant of which he is the intermediary, based, as it is, on better promises, excels the former Covenant.

By speaking of a 'new' Covenant, God at once renders the former Covenant obsolete; and whatever becomes obsolete and loses its force is virtually annulled.

and then there is added-- 'See, I have come to do thy will.' The former sacrifices are set aside to be replaced by the latter.