Wow! Great to welcome church harmonica player. I played harmonica in church for many years. Now i’m playing piano on church. I think that isn’t good idea to translate notes to tabs. I think that better will be play directly from that sheet. Maybe will be usefull chart made by @HarpinBobbyMcB ( Scales - #14 by HarpinBobbyMcB ).
…But I think that this song is too hard for starting to learn notes reading.
Firstly - I reccomend to little workout:
Sheet notes that You uploaded are made for whole choir. It’s little hard to determine main melody. Here I found simpler notes for that song:
I’ve also made some tabs for couple of popular church songs:
…but
I think that best way is to play by ear. Maybe You can meet with band leader and he/she will play song on piano or sing note by note and he will teach you to play that song.