I believe that an argument for be made that Paul’s list while vital is not necessarily comprehensive. There are more Fruits that could be on this list once.

Could Holiness be a Fruit of the Spirit? I think it could be a Fruit of the Spirit. Why? Well in the Old Testament we read,

⁴⁴ For I am the Lord your God. Consecrate yourselves therefore, and be holy, for I am holy. You shall not defile yourselves with any swarming thing that crawls on the ground. ⁴⁵ For I am the Lord who brought you up out of the land of Egypt to be your God. You shall therefore be holy, for I am holy.” 

Leviticus 11:44-45

or

Leviticus 19:1-2

In the New Testament, Peter takes up the idea of being holy as God is Holy.

¹⁵ but as he who called you is holy, you also be holy in all your conduct, ¹⁶ since it is written, “You shall be holy, for I am holy.”

I Peter 1:15-16

or in the Gospel of Matthew

You therefore must be perfect, as your heavenly Father is perfect. 

Matthew 5:48

You might add Justice (Isaiah 30:18) as a Fruit of the Spirit or Wisdom (Romans 16:27) or Forgiveness (Ephesians 1:7) or Humility (Matthew 11:29).

You get the idea. These are all characteristics of someone that follows Jesus Christ. Why didn’t Paul add these into the Galatians passage about the Fruits of the Spirit? I don’t know. Can we legitimately add them as possible Fruits of the Spirit, now? I think so and in the next blog post, we will explore why I believe that to be true.