If God is right and holy, then who created evil?

Remember, God kept a choice of spiritual beings and man to select God or their selfish ways. Whenever God’s supremacy was challenged, either by angles or man, they became evil. God-given creative power then turned to evil things. Thus there was nothing called the creation of evil by God. It came into existence when God’s supremacy was challenged by spiritual beings and later by the man by their own choice.

He kept a choice to select God’s supremacy or their selfish way.

The first choice was done by Lucifer (later became Satan) and we see what happened in his mind;. “For thou hast said in thine heart, I will ascend to heaven, I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation, in the sides of the north: I will ascend above the heights of the clouds; I will be like the Highest.” (Isaiah 14:13-14).

Following this, a witness account was given by Jesus Christ. And he (Jesus Christ) said unto them, “I beheld Satan as lightning fall from heaven” (Luke 10:18).