Romans 8:3

Acts 13:39 NIV
Through him everyone who believes is set free from every sin, a justification you were not able to obtain under the law of Moses.

Hebrews 10:14 NIV
For by one sacrifice he has made perfect forever those who are being made holy.

Hebrews 7:18-19 NIV
The former regulation is set aside because it was weak and useless (for the law made nothing perfect), and a better hope is introduced, by which we draw near to God.