“…for through Him, we both have our access in one Spirit to the Father.” (Eph. 2:18)
The Him in this passage is obviously Jesus who has been the subject of the entire discourse. All three of the Godhead are mentioned here, and their roll in our relationship to the whole is somewhat explained. (There is no complete explanation of God anywhere in this world.)
In Him, this Jesus who gave his blood and his flesh on the cross to destroy the Law, we have access to the Father because of the Spirit. Jesus told his disciples before his death that he would not leave them alone. They were not to be left without guidance and help to reach their goal which was reconciliation with God. He said he would send the comforter who would be the connection between them and God. This comforter was none less than the Holy Spirit of God, part of the Trinity.
There was a barrier between Jews and Gentiles and between man and God. The Law separated the two groups of people and sin separated both of them from God. What Jesus did was eliminate both of the barriers of separation and thus made one, Jew with Gentile, and man with God. He removed the barriers with his blood and his flesh. He paid the ransom price. He redeemed Jew and Gentile with the act of the cross.
All of the world was alienated from God by sin. Now, through Jesus, we are brought nigh. We have fellowship with God (1 John 1:7), and that fellowship is a result of forgiven sins.
Next, Jesus kept his promise and gave us the gift of the Holy Spirit to live inside of us. It was God making his temple (dwelling place) within us. When all the faithful saints gather, that body also becomes the temple of God as he accepts our collective worship. If we are together in worship, we can’t be a part of God’s new and wondrous, worldwide, accepting Holy Place. (1 Cor. 3:16, 17)
The Holy Spirit has direct communication with God. We have the Holy Spirit living in us. Therefore, through the Holy Spirit, we have access to communication with God. When we can’t think of the words to say or the way to frame our thoughts the Holy Spirit knows us so well that he makes the words for us. That is powerful stuff. Direct line to God. Made possible by the cross. Forgiveness, made possible by the cross. Christ living in me through his Spirit, made possible by the cross. Eternal salvation and freedom from sin made possible by the cross. No wonder Paul said, “I don’t want to hear anything but Christ crucified.”
Is he living in you? He wants to. He stands at the door and knocks. “He that believes and is baptized will be saved.”