Have you ever had a friend or family member reject your faith? How did you respond?
One of the hallmarks of a true friend is a mutual love and respect. If you have a friend who refuses to respect your faith, then it is going to be very hard to continue that friendship. What is your relationship built on, if not respect and love for each other?
Your true friends will care about the things important to you. Your faith is part of you. You are a Child of God. Your entire self has been remade. Not everyone is going to be able to understand that or embrace it. Keep your unbelieving friends in prayer, asking God to work in their hearts—even if it isn’t through you.