1 Corinthians 13:6
Love does not delight in evil but rejoices with the truth.
3 John 4
I have no greater joy than to hear that my children are walking in the truth.
Everyone has heard about your obedience, so I rejoice because of you; but I want you to be wise about what is good, and innocent about what is evil.
A husband and wife should always find delight when the other has something good happen to them. Only with Christian couples do we find that love celebrates godliness, however. Just as John wrote, there is perhaps no greater joy than seeing our spouse (or children, as written) reading and growing in God’s Word.
Of course growing in godliness doesn’t happen automatically. While we should celebrate it and it should bring us great joy to see those we love growing, we should also make it a priority. Anything that brings us this kind of delight is something that we should be working toward all of the time.
The case can be made that the husband is to be the spiritual leader of the home but there is certainly nothing wrong with a wife promoting godliness in the marriage. In fact, when a husband is negligent in his duties as a spiritual leader the wife should seek to encourage him. Ideally a husband and wife will be on equal footing spiritually but often this is not the case.
While it is important for a marriage that both the husband and wife are believers, this isn’t always the case, particularly when one becomes a Christian after marriage. But even when both are Christians, there will often be a difference in the level of maturity between the two. When this is the case, the more mature Christian should look for ways to promote godliness as a couple. Occasionally there will be opportunities to promote individual growth as well but a spouse should not be forced into being more godly because that simply will not work. Godliness must be a decision that is made by oneself; it can’t be thrust upon anyone.
Because we are to celebrate godliness, we must promote it in our own lives. While you should delight in seeing your spouse grow, it is important to remember that ultimately you can’t force them to grow. You are only responsible for yourself. Hopefully your spouse will delight in seeing you grow and will want to grow along with you.