In the Bible, the phrase "right hand" has two main meanings. First, it means the right side of a person's body. Second, it is often used as a symbol with special meaning.
The word "right" in the Bible often means "correct" or "good." When something is "right," it means it is just and follows God's ways (Genesis 18:25). In many places in the Bible, God's right hand is used as a symbol of his power. For example:
It represents how God helps his people win battles(Psalms 17:7, 98:1)
It shows how God punishes those who do evil things (Hebrews 2:16)
It shows how God punishes those who do evil things (Psalms 139:10).
While humans cannot save themselves by their own power, God promises to make people strong when he decides to help them (Job 40:14; Isaiah 41:13).
To be at the right hand of God is to be in a place of great blessings (Psalms 16:11). At the right hand of God, the Lord Jesus Christ now reigns in glory and intercedes for those he has redeemed (Romans 8:34).
To offer the right hand of fellowship is to extend acceptance and grace (Galatians 2:9). In Bible times, people would shake right hands to show they were making a serious promise or agreement. This practice of using the right hand to make promises was also used in biblical times and continues today (2 Kings 10:15).
The left hand is sometimes linked to blessings (Proverbs 3:16). However, it may also be linked to when someone betrays trust or does something wrong (Ecclesiastes 10:2).