Pedals: what to play. Like in the clinic where Alexander Schreiner (a tabernacle organist) showed us.

• I went to a small class in our stake center as a boy, where a tabernacle organist (to me famous and important) told us to do it this way.
• He used "we thank thee o God, for a prophet" to show us.
• (Is there a hymn that the learner prefers to practice on?)
• He had us always use the lowest note written for a given chord, and play it on the pedals. That hymn only has 3 such notes. "True to the Faith" has many more.
• The reason they don't write it separately in the hymnbook is probably because of how much more room it would take up.
• (Pedal foot action, show example, exercise. Start simply, gradually, practice.)