If Ye Love Me, by Thomas Tallis, is an English Anthem that was first published in 1560, and perhaps composed circa 1549.

If you are looking for a piece for your middle school or high school band that will introduce your students to music from the Renaissance Period, allowing you to work on ensemble sound and tuning, dynamics, independent counting (polyphony), staggered entrances and releases, chorale style (could be used as a chorale), listening for the melody, ensemble listening across the band, this piece could be for you.