Is my life a sermon?

I was talking with a friend this weekend about the topic of suffering. As both of us grew more and more passionate about the injustice of American prosperity and comfort, she excitedly exclaimed, “Girl, I could preach a sermon on suffering.”
It hit me in that moment- there are probably a lot of things I could discuss theologically, perhaps even preach a sermon on. But- how many things is my life preaching a sermon on? Do I exhibit behaviors that challenge people to reconsider the way they are living their lives? I have acquired a decent amount of head knowledge concerning theology over the past few years, but how much of it am I actually putting in to practice? A verse that has been particularly convicting for me over the past few days has been Romans 10:2: “For I bear them witness that they have a zeal for God, but not according to knowledge.”
This verse has a few applications, but the two that have been most prominent for me recently are:
1) Do I have a zeal according to knowledge? Does my knowledge of God increase my passion for Him?
2) Would people even say that I have a zeal for God? Is that apparent through my actions, or is God just some thing that I think about, and occasionally discuss? If He isn’t changing my actions, do I really believe what I claim I believe?

It has been quite humbling to consider the answers to these questions. Over the past year, my knowledge of God has definitely been increasing my love for Him, and my worship of Him. If we can’t worship God in His entirety, then can we really worship Him at all?
The second question has been a bit harder to answer. There are a lot of things that I intend to do, or would like to do “someday.” But I am a master of procrastination. Unfortunately, this doesn’t only apply to school, but I procrastinate in my spiritual life too. I don’t tell my friends about Jesus as much as I should. I don’t even have the excuse of persecution- I’m just afraid people might not like me. How lame is that? A person’s decision to follow Jesus is a choice that literally affects eternity. And I’m too afraid to talk to someone about it because it might be a little awkward. I am so unworthy of God’s grace.
I pray that we would all become a people whose lives preach sermons to those around us. I pray that my life would be a testimony to the saving grace of Christ, that I would be an image-bearer of the Most High God, and that I would really start to take that calling seriously. I pray that, as a body of believers, we would become more intentional about sharing the Gospel with those around us- through both our actions and our words.