“If a man sins against the Lord, who then will intercede for him?” – 1 Sam 2:25 NET
But if anyone does sin, we have an advocate with the Father, Jesus Christ the righteous One, and he himself is the atoning sacrifice for our sins, and not only for our sins but also for the whole world.—God publicly displayed him at his death as the mercy seat accessible through faith. This was to demonstrate his righteousness, because God in his forbearance had passed over the sins previously committed. This was also to demonstrate his righteousness in the present time, so that he would be just and the justifier of the one who lives because of Jesus’ faithfulness.
God is gracious to him and says, “Spare him from going down to the place of corruption, I have found a ransom for him.”
What then shall we say about these things? If God is for us, who can be against us? It is God who justifies. Who is the one who will condemn? Christ is the one who died (and more than that, he was raised), who is at the right hand of God, and who also is interceding for us.
1 John 2:1-2, Rom 3:25-26, Job 33:24, Rom 8:31, Rom 8:33-34