The concept of holiness may seem a bit archaic to our current generation. To some minds the very word holiness brings images of bunned hair, longs skirts, and black stockings. To others the idea is associated with a repugnant "holier than thou" attitude. Yet holiness is very much a scriptural idea. the word holy in various forms occurs more than 600 times in the Bible. One entire book, Leviticus, is devoted to the subject, and the idea of holiness is woven elsewhere throughout the fabric of Scripture. More important, God specifically commands us to be holy (see Leviticus 11:44).
There is no way we as Christians cannot pursue holiness. It's commanded. It also says in Hebrews 12:14 that we are to "strive for peace with everyone, and for the holiness without which no one will see the Lord." Without holiness, we will not see God. So is holiness important? Absolutely!