Marriage criteria- Equally Yoked

if the other person does not share your faith, that person looks into your heart and sees the most important thing to you (affects how you make decisions etc) and does not understand it, and therefore does not understand you; if s/he does not understand you then in the long run you can get intimate with her/him and put God out of your life, or put God in the centre and the other person is on the outskirts... (paraphrase of Tim Keller from various talks)