The principle of treating each other with respect is given to the wife also. To be in subjection to is defined as patient respect. The wife’s attitude of acceptance and respect can win over the husband who isn’t walking with God.
The answer to doubt is to see what Jesus is doing. The answer to the question, ‘Is Jesus the Messiah?’, is to look and see all of the miracles He performs. Trusting Jesus doesn’t automatically mean your circumstances will change, but it does mean that He will make sure that you’re blessed if you believe.