I gave up years ago trying to get choral or congregational music published. It's pretty much impossible to get a publisher to look at your music. But here is a song that my congregations have enjoyed singing. We sing it throughout the year, but it makes a nice Palm Sunday song. I'm happy for you to use it. It would be nice if you would send me a note or leave a comment if you do. The first two pictures here are vocal parts with guitar chords. After that you'll find a copy of the song with piano that is several pages long. If you click on the pages they will enlarge. (or send me an e-mail and I'll send you a PDF file.)
The tempo should be around quarter note=140.
There are a few more pages. Write me and I'll send you the PDF. Much easier than trying to get the song here.