This song is being used as an entrance this week and I have never heard of it before, although I am assured it has been used for years and everyone at my current parish knows it. It is by Debra Kerner and from a collection of songs by “Psalty” the cartoon Psalter.
The text is at their site and you can listen to the song there. The sheet music is also available to purchase in one of their collections.
It is really not very suitable for kids with the odd timings and octave leaps and long held high notes. It looks like it is taken down from G to F locally, but the range is still very wide (still a low A to D). My backing is in F.