Proverbs 18:1 ESV - Whoever isolates himself seeks his own desire; he breaks out against all sound judgment.
How often do you feel the desire to just pull away from everyone and everything? Maybe after a full day of work or difficult meeting? It is actually Biblical to take bits of time to get alone with God and recharge, but it violates Scripture to isolate yourself. When we isolate ourselves from the family of believers, we rob them of encouragement and potential ministry. We also rob ourselves from the opportunity to be refreshed by others or refreshed by exercising our gifts to serve others. Can you tell the difference between your spiritually refreshing solitude and your self-seeking isolation? Do you tend to isolate yourself within your family group to the exclusion of others on a regular basis? How might God want you to broaden your fellowship to involve more non-family members? Are there people at similar stages of the spiritual life as you (or who are younger and coming along behind you) who you could bless by consistently including them rather than slipping into isolation or cliquishness?
Galatians 6:9-10 NIV - Let us not become weary in doing good, for at the proper time we will reap a harvest if we do not give up. 10 Therefore, as we have opportunity, let us do good to all people, especially to those who belong to the family of believers.