Furthermore, a changed and transformed view of sin needs to take place. Sin is a lack of wholeness, a failure to be all that we were meant to be (for a brief synopsis I again refer you to this post). As such focussing solely on liars, thieves, and adulterers (as per the black book) is again incomplete, these do cause a lack of wholeness but are not the only way. A person who is sick or injured may not be whole. A person who is poor may not be whole. This is where the church is to stand a people of the dispossessed, of the broken, the lost, the searching, the lonely, the hurting. We are called to provide for all of these to clothe the naked, feed the hungry, house the homeless (its all about isaiah 58). However, it is not always what is visibly wrong with a person that is their lack of wholeness (that is very clumsily worded). For example, a person who has lost a limb can be more than physically crippled by the injury whereas someone else who has lost the same limb may only be physically crippled. While we can have a hope that in the eschatological kingdom both will be restored to a physical wholeness that is impossible at the moment there is a wholeness that needs to come to the first person, a bringing of heaven into their lives.
I'm not saying that being Christian means being whole and that if you're not then you're not a Christian because that is not true. There is a wholeness that is still to come a completion and perfection which the whole earth is moving towards. However, there is a progression and perfecting that begins here on earth. To which we should all strive.