There are several different recommendations on how to play this song floating around online. I like the version below as it appears to be one of the easier versions to play and it sounds like the original.
You will need a guitar capo to play this particular. If you do not already have a capo, you definitely need to get one. A capo is a guitarists best friend. You can learn more about the guitar capo by following this link.
A big thanks to Dean for making this video lesson available. You can learn more about Dean and view more of his Christian Worship Guitar Videos over at his YouTube page.