Sadly, some who seemed to appreciate Jesus' sacrifice and made a dedication to God no longer associate with the Christian congregation. Discouragement, health problems, or other factors may have weakened their zeal and caused them to become inactive. However, only as part of God's flock can they enjoy the serenity and happiness that David spoke of in the 23rd Psalm. For instance, he sang: "Jehovah is my Shepherd. I shall lack nothing." (Ps. 23:1) Those in the flock of God lack nothing in a spiritual way, but that is not the happy lot of sheep who have strayed.
What's so interesting about this paragraph, is that the rank and file will not notice the oxymoron here. They claim that "only as part of God's flock can they enjoy the serenity and happiness that David spoke of..." while completely ignoring the fact that David himself was not a Christian, nor a Jehovah's Witness. They try and make Jehovah's Witnesses feel special by saying that only Witnesses are happy. No one else in the whole world is happy except Witnesses because they are busy attending meetings and going from door to door. Is this true? Of course it's not. Despite all his failings, David apparently enjoyed a good relationship with God without attending 5 meetings a week or knocking on doors Saturday morning. My god, he even had a beard!
It is really love that motivates Christians to assist inactive ones to return to the congregation? Or is it just because it's a directive from the Governing Body? Is it not true that most things that Witnesses do that should come from the heart, are done mainly because the Governing Body tells them to do it?