Per the Nicene Creed:
[Jesus] is seated at the right hand of the Father.
Per the Holy Bible:
Who then will condemn us? No one—for Christ Jesus died for us and was raised to life for us, and he is sitting in the place of honor at God’s right hand, pleading for us.
I also pray that you will understand the incredible greatness of God’s power for us who believe him. This is the same mighty power that raised Christ from the dead and seated him in the place of honor at God’s right hand in the heavenly realms.
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Truth is...This is another one of those things that are Scriptural but maybe not all that important. However, what Jesus is DOING there beside the Father is absolutely mind-blowing: "If anyone does sin, we have an advocate who pleads our case before the Father. He is Jesus Christ, the one who is truly righteous." (1 John 2:1)
Jesus is our defense attorney!