It seems like I should be able to determine relatively easily if I’m personally growing spiritually but it isn’t as easy as you think it should be. What exactly should I be looking for in my life? For so many people the indicators of spiritual growth are only focused on behavior. Now of course our behavior is incredibly important to God but when that is the only consideration, we neglect our heart which is where our motives and loves spring from.
I recently finished Tony Reinke’s book Newton on the Christian Life; a book that will almost certainly be on the short list of best books that I read in 2015. Even if you’re not familiar with Newton, you are definitely familiar with his most famous hymn: Amazing Grace. After leaving the slave trade, Newton became a pastor in Olney and later London. While his sermons are rather ordinary, the hundreds of personal letters he wrote are exceptional. They are quite literally treasure troves of spiritual wisdom, pastoral care, and pictures of grace.
Reinke does a great job of surfacing some of Newton’s treasures and helping the reader personally benefit from it. In one section he shares Newton’s marks of a maturing Christian. While this list is hardly exhaustive, it does a good job of probing our heart and helping us see areas of our life that we might need to grow in. After each mark, I included a question(s) to further help me discern where I am spiritually.