Before we answer the question posed in the title, we need first to understand the nature of God. Let's first look at the two passages below.
According to the above scriptures, God is a Spirit, and a spirit does not have flesh and bones. Therefore God does not have a literal right or left hand because he is a Spirit, and by his Spirit, he fills the heavens and the earth.
Thus, when we examine the scriptures, we see that the phrase "the arm of God" or "the hand of God" or "the right hand of God" is used in scripture to refer symbolically to the power, might, strength of God. It is never used to refer to a literal physical hand of God.
The arm of the Lord is symbolic of God's Strength/ power/might.
God did not literally stretch out a physical hand to bring Israel out of Egypt. However, this phrase symbolizes God's mighty strength and power that was shown in Egypt to deliver Israel out of Egypt.
Again, the above passage in Isaiah is not calling on a literal arm of the Lord but the power/ strength of God, which was revealed in the ancient days.
The arm that is going to Judge and the Gentiles will trust on is not a literal arm of God but is symbolic of the Power/ strength by which God Judges the world, and Gentiles are going to trust his strength.
"arms" is symbolic of God's power, which is everlasting, carries Israel and destroys their enemies, not a literal arm that caries Israel.
God here is swearing by his power/ strength. The arm is used as symbolic of God's strength.
The hand of God is symbolic of his of God's strength/ power/might.
Hand or arms represent man's strength: his right hand is his highest strength while his left is his weaker strength. In the same way, God's right hand is symbolic of God's highest strength, and God does not have a left hand because God does not have weak strength or power.
"The Hand of the Lord" symbolizes the powerful strength that Elijah had when he ran before Ahab to the entrance of Jezreel.
Again, the 'hand of the Lord' is symbolic here of the power of God that was against the people of Ashdod.
Again, 'the hand of the Lord' is symbolic here of the great power of God that was with the Apostles, and because of it, a significant number turned unto the Lord.
The right hand of God symbolic of God's strength/power or his highest strength/power
God's right hand is used here as symbolic of God's mighty power that was demonstrated upon Israel's enemies. It was not a literal hand that was seen dashing the Egyptians during the Red sea Crossover.
"Right hand" symbolic here of God's mighty power that divided the Red Sea, which resulted in the Egyptians drowning the seas while trying to crossover through the dry land.
Symbolic here as God's highest strength that saves them that trust in him, not a literal hand that saves them.
Symbolic of God's power that is holding him up, not a literal right hand of God holding him up.
Symbolic of God's mighty strength by which he saves.
This would not make any sense if it were the literal right hand of God. However, we know it always refers to God's mighty power. Therefore the psalmist is saying he would remember the years where God's mighty power was evident.
"Right hand" here symbolizes God's mighty power through whom Israel possessed the Mountain, Not a literal hand that purchased the Mountain.
In this passage, it is symbolic of God's highest strength that is exalted, and that is valiant.
So now, let's examine the following question?
What does it mean when the Scripture speaks of Jesus Christ sitting/ standing/ is on the right hand of God?
We have seen that all Old Testament (OT) passages that refer to God's 'right hand' are always used symbolically to represent God's power. Therefore when one comes to the New Testament (NT), when the phrase' right hand of God' is mentioned, it must be taken as symbolic of God's power.
If one interprets the 'right of God' in the above NT verses to mean that Christ is sitting next to God's literal physical right hand, we would have several problems. Firstly God is a Spirit; he does not have a physical right hand; as we have seen, all of the OT passages that talk of God's right hand are symbolic. Secondly, one would have to interpret the same way the below NT passages:
This would mean, according to Acts 2:33 and Acts 5:31, that a literal physical right hand of God exalted Jesus Christ to be Prince and savior. This is obviously an absurd interpretation.
However, the correct interpretation and understanding would be that the right of hand of God is referring to the highest power of God. Therefore, "Christ sitting on the right hand of God" means that he is sitting in heaven with the power and authority of God.
Jesus himself made it plain in the below passage:
The Hebrew writer also notes in the below passage;
As always, this is not literal, as Majesty does not have a right hand. The "right hand of the Majesty on high" means the Highest Majesty in heaven. Therefore, according to the above passage, Jesus Christ is sitting at the highest Majesty and the highest throne there is in heaven. Since Majesty symbolizes power and authority, the writer of Hebrew is saying that Jesus Christ is sitting on the highest throne of power or authority in heaven. In other words, there is no one else that has more authority or power in heaven than Jesus Christ himself. Jesus Christ, who was humbled to the point of death, is now sitting as God in Heaven with all authority and power belonging to him.