My Uncle passed and I want to learn a song he loved, but one problem...

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My Uncle passed and I want to learn a song he loved, but one problem...

I can't figure out the chords! Please help me! Can someone tell me what chords this guy is using??? I have never seen chords like these!

 

My Uncle passed away and he was the one who went in half on that old Supro guitar with me he found, which led to me being able to buy my ESP EC-256. 

He was a devout Christian and he loved Matt Redman's music. I want to learn this song for him, but I don't what chords these are. He was very supportive of my guitar playing and hoped I would go places with it. I need some help!

 

 

Here's the video of some guy playing it:

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