In 2016 a Pew Research Center survey received the following reasons Christians abandoned their faith:
Learning about evolution when I went away to college.
Religion is the opiate of the people.
Rational thought makes religion go out the window.
Lack of any sort of scientific or specific evidence of a Creator.
I just realized somewhere along the line that I didn’t really believe it.
I’m doing a lot more learning, studying and kind of making decisions myself rather than listening to someone else.
“Do not let your beauty be that outward adorning of arranging the hair, of wearing gold, or of putting on fine apparel, but let it be the hidden person of the heart, with the incorruptible ornament of a gentle and quiet spirit, which is very precious in the sight of God.” 1 Peter 3:3-4.
“…put on tender mercies, kindness, humbleness of mind, meekness, longsuffering; bearing with one another, and forgiving one another, if anyone has a complaint against another; even as Christ forgave you, so you also must do. But above all these things put on love, which is the bond of perfection” Colossians 3:12b-14.
“And let the peace of God rule in your hearts, to which also you were called in one body; and be thankful.” Colossians 3:15.