First note that a commitment to holiness involves preparation for mental action, sober decision, human hope, God's grace, and the anticipated return of Jesus Christ. The fact that God freed Israel from Egyptian slavery created their motivation to surrender to holiness. No one is holy by accident. It is not convenient for anyone to be holy. It is not easy for anyone to be holy.
Holiness demands that the person resist evil as well as serve godliness.
Resisting the evil within our minds and hearts is difficult. Resisting evil in our hearts, minds, actions, behavior, and relationships requires deliberate decisions and choices that reject evil. Serving good requires a similar identification process and similar deliberate decisions and choices. Allowing God to reveal and identify good is a challenge that continues throughout life in this world. To be holy, a person must surrender to holiness.