If your church made kneelers a few decades ago, they may now be uncomfortably squashy.
Repairing kneelers is a tiresome job that may take four to five hours each, but you will be giving them a further 40 to 50 years of life.
Though the Tent stitches or Cross stitches will still be in perfect condition, the stuffing, the backing and the strap to hang it up by may be in a state of collapse. & the chip foam stuffing has crumbled and will get steadily worse until replaced.
You need 10lb chip foam, new tape and new canvas for the base (see suppliers), then follow the procedure in making up. Your kneeler will now look as good as new.