I think we have a good definition of holiness in Psalms 15:1-2.  Here David asks, “Lord, who may dwell in Your sanctuary?  Who may live on Your holy hill?  Then he answers himself: “He whose walk is blameless and who does what is righteous” (NIV).  Hence holiness is two things: being blameless, or not doing what is wrong; and it is also doing what is right. 

We have this same definition in Job 1:1. Here we read, “In the land of Uz there lived a man whose name was Job.  This man was blameless and upright; “he feared God and shunned evil” (NIV).  Thus, those who are holy fear God—have a reverent respect for God and seek to obey Him in everything.  They also endeavor to conform to His holy character, which would include shunning or hating sin

In the simplest terms, holiness is living “without sin.”  That is what…