Staring at the Light, The Wedding; I Saw the Light, David Crowder Band

Two songs that have really spoken to me recently...can you find the underlying theme here?

Redemption is waiting at your doorstep
He is begging you to let him in now
You can put all of it off again
But where's it gonna get you in the end?

The time is now so maybe you should think things out,
Yea, take some time and think about it now.

This is the only chance to do something about it (something about it)
And don't you put it off (cause you can't live without it)

Cause the time is now

And take your life back with a vengeance
For the first time you cannot have true love
Promise me you'll never sleep again
Cause until you find the answers there's no rest.

To put to death the life you've lived in doubt
I'll show you all the things you've heard about

This is the only chance to do something about it (something about it)
Don't you put it off (cause you can't live without it)

You are on the verge
Let go
Go on staring at the light

If you let go and just believe
You won't make a liar out of me
Come try and show me what you see
What I have is what you need

This is the only chance to do something about it (something about it)
And don't you put it off (cause you can't live without it)

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I’ve wandered so aimless, life filled with sin
I wouldn’t let my dear Savior in
Then Jesus came like a stranger in the night
Praise the Lord, I saw the light

I saw the light, I saw the light
No more darkness, no more night
Now I’m so happy, no sorrow in sight
Praise the Lord, I saw the light

I’ve walked in darkness, clouds covered me
I had no idea where the way out could be
Then came the sunrise and rolled back the night
Praise the Lord, I saw the light

Just like a blind man I wandered alone
Worries and fear I claimed for my own
Then like a blind man who God gave back his sight
Praise the Lord, I saw the light

When death takes me down and I breath here no more
My anthem will sound on that eternal shore
When I join with the angels in heaven on high
Singing “Praise the Lord, I saw the light”