Psalm 119:113-120

Psalm 119:113-120 
English Standard Version (ESV)

  If you surround yourself with people who all rise early in the morning to exercise and eat nothing but steamed broccoli and baked chicken, guess what your life will look like in a few years.  Similarly, if your community is filled with people who attend concerts and stay out until 3 a.m. sampling different late-night restaurants, in a few years you'll be well-versed in the best late-night food in town.
  We emulate our communities -- they rub off on us, and after a while, the traits of our lives resemble the traits of the larger community.  If you wisely choose friends who have integrity and pursue God, they'll push you to be a more faithful Christian.  Likewise, if you opt to have people who are double-minded, who pursue evil over selfless service, then there's a chance they'll influence your life in that way.
  So find a community of faith that you trust, that pushes you to grow in faith and challenges you with tough questions.  Ensure they are people of integrity, who pursue the right thing over the easy thing.  Pray for that community, and let them surround you with their prayers, and in the years to come, you'll find yourself growing in faith and integrity as well.