Ephesians 4:24. “And that ye put on the new man, which after God is created in righteousness and true holiness.”
The putting on of the new nature is a deliberate act of obedience. The picture here is of a person removing an old garment and putting a fresh new one in its place. The new garment is to reflect that we are created in His image. We are to seek righteousness and true holiness as we begin our walk with God.
So of course, the question arises, “What is holiness? Do you mean we have to be all dreary and pious all the time? No more fun? Nothing but praying, reading the Bible, and going to church?
Nope. Not even close. Here’s one good definition I found online:
in the highest sense belongs to God ( Isaiah 6:3 ; Revelation 15:4 ), and to Christians as consecrated to God’s service, and in so far as they are conformed in all things to the will of God ( Romans 6:19Romans 6:22 ; Ephesians 1:4 ; Titus 1:8 ; 1 Peter 1:15 ). Personal holiness is a work of gradual development. It is carried on under many hindrances, hence the frequent admonitions to watchfulness, prayer, and perseverance ( 1 Corinthians 1:30 ; 2 co 7:1 ; Ephesians 4:23Ephesians 4:24 ). (See SANCTIFICATION .) (biblestudytools.com/…al-textbook/holiness
Why do we assume that holiness excludes happiness or joy? The fact is, true happiness is found in Jesus Christ! The more we are conformed to Him, the more peace and satisfaction we find in life.
There is certainly no lack of laughter and fun in my life. Just as it does in a family, where the obedience of the child toward the parents brings a peace and contentment to the home, so our obedience to God results in a true joy that passes understanding.