A Call To Exposition

First and foremost, i would like to encourage a quick reading of Ephesians chapter five (look, that's even a link to it for you), namely verses one through fifteen, but the entire chapter is quite instructional and useful. It pleads with us to love one another, and to serve out of that love. It's a wonderful concept. In fact, it says to submit to one another "out of reverence for Christ."
Isn't it a beautiful thing to see people serving others because of their respect for Christ? Because they see creation as part of His handiwork and, therefore, bless others because they're made in the image of God?
This post is not about that at all. In fact, that's from the part of the chapter that comes after verse fifteen. Moreover, this is about sin.

Let's have a glance over at a specific passage;
"...for at one time you were darkness, but now you are light in the Lord. Walk as children of light..." (v. 8)
At one time, we were darkness. Take note here of the lack of the word "in." We weren't just dwelling in darkness, but we manifested it. We were one with sin, we didn't just live with it. There was nothing of us that we could do that wasn't darkness.
The hope, however, enters with the first phrase, "for at one time..." which means we no longer are. Again, "now you are light in the Lord." We see a similar reference in the parable of the lamp under a jar in Matthew; “You are the light of the world."
We are no longer darkness, or even in darkness. We are light (note another absence of "in"). People see God because they see us. Through us, this world knows what the hands and feet of God are up to--and that cannot be idleness.

But our darkness must become resolved with our new being lest we remain partially darkened, and a light can't emit darkness.
There is a way.
"Take no part in the unfruitful works of darkness, but instead expose them. For it is shameful even to speak of the things that they do in secret. But when anything is exposed by the light, it becomes visible, for anything that becomes visible is light. Therefore it says, 'Awake, O sleeper, and arise from the dead, and Christ will shine on you.'" (v. 11-14)

It says to take no part in works of darkness, have no sinfulness about you, let no shadow fall on you, but rather expose it to light.

"And they have conquered him [the devil] by the blood of the Lamb and by the word of their testimony, for they loved not their lives even unto death." (Revelation 12:11)

We have conquered Satan by the blood of the Lamb and by the word of our testimony. How else can we have a testimony but by an exposition?
If you want to see the full redemptive power of God for Salvation, the Gospel come to power in its fruition, the world around you change entirely, let your testimony be heard. Expose the works of darkness you once emanated and make them light. Make them your testimony. Make them the hope for others in the same place you were in when you were pulled out by the blood of the Lamb.

As to our darkness being resolved with our new life, this is what is meant; anything exposed by light becomes light. Wake from the death that is the flesh, let Christ shine on you, and let His light illuminate the darkness you once were, and even it will become light, a beacon to others. In this, your testimony is created and brought forth to be a light for others struggling as you were.

This is a call to confession, if you can't tell. I don't care who you confess to, but confess to somebody--preferably somebody who needs to know there is hope. Let them know that Christ is your only hope, and that He's theirs as well.
You can confess to a pastor or minister (that is perhaps a safe place to start) but that hardly builds them up, now does it? God distributes gifts for building others up. Your testimony is a gift, and He intends for you to build others up with it.