It is more so sad that some Apostolics will not accept holiness is in every part of life. They want to make Heaven their home and still live like Hell. Cannot and will not ever happen. One must be holy in all areas of life.
But as the One Who called you is holy, you yourselves also be holy in all your conduct and manner of living. For it is written, You shall be holy, for I am holy. (
1 Peter 1:15-16 AMP)
To some people, you can have a good attitude and still be holy, though you may dress like the world in relation to gaudy fashions and ungodly apparel. You cannot declare one as holy before the Lord. Their heart is not truly holy, for they desire to continue in ungodliness in one area of life.
Jesus calls us to be holy in every area of life, not just the spiritually applicable ones. If not, then we are not holy. So, if you do not want a dress code for holiness, and choose to continue living like the world, then your heart is not holy before the Lord.
A holy heart and spirit will result in a holy life without exception.