“For this is the kind of high priest we need: holy, innocent, undefiled, separated from sinners, and exalted above the heavens. He doesn’t need to offer sacrifices every day, as high priests do — first for their own sins, then for those of the people. He did this once for all when He offered Himself. For the law appoints as high priests men who are weak, but the promise of the oath, which came after the law, appoints a Son, who has been perfected forever.”
Hebrews 7:26-28 HCSB
This drives home the fact that Jesus’ sacrifice of Himself is the required blood sacrifice for our sins. Unlike High Priests, who are human and therefore sin, He did not need a sacrifice for Himself to be able to come before God the Father. We need that sacrifice, and He took it for us.