How would Biblical Inerrantists resolve perceived tensions between 2 Timothy 3:16 and Hebrews 7:18?

2 Timothy 3:16 says: > All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness... (NIV) From the perspective of Biblical Inerrancy, how is this compatible with Hebrews 7:18 , which speaking of the law of Moses says: > The former regulation is set aside because it was weak and useless (NIV) ? If there are various approaches that are too disctint and sufficiently nuanced to be comprehensively covered here, what is a basic overview of such approaches?