'Intercession' in the Bible

In the same way, the Spirit also helps our weaknesses, for we don't know how to pray as we ought. But the Spirit himself makes intercession for us with groanings which can't be uttered.

He who searches the hearts knows what is on the Spirit's mind, because he makes intercession for the saints according to God.

Who is he who condemns? It is Christ who died, yes rather, who was raised from the dead, who is at the right hand of God, who also makes intercession for us.

Therefore he is also able to save to the uttermost those who draw near to God through him, seeing that he lives forever to make intercession for them.