How does Jesus advocate for sinners according to the Bible?

Jesus advocates for sinners not only by advocating during His earthly ministry but now also as our High Priest in heaven. As explained in Hebrews and echoed in 1 John 2:1, He is referred to as 'Jesus Christ the Righteous' and serves as the propitiation for our sins. His righteousness is vital because it ensures that our pleas are accepted before God. This advocacy is exemplified in His encounters during His ministry, such as His defense of the woman caught in adultery, where He exemplifies grace and justice. Now that He has ascended, He continues to fulfill this role, interceding on our behalf and ensuring our sins are atoned for, both cleansing us and restoring our relationship with God.