He 'devoted' [='dedicated'] his life/time 'to' helping the poor. = He 'devoted himself to' helping the poor. [=he used his time, energy, etc., to help the poor]
The author's 'devoted' [='loyal, faithful'] readers have been eagerly waiting for the new book.
Some of the money they raise will be 'devoted to' repairing the church's roof.
(..) It's making it a little hard to concentrate. Their leader, Charles Manson, was sometimes referred to... as both "God" and "Satan" by his devoted followers... and had predicted an Armageddon-like event he called Helter Skelter. Thank you. Hey. You know what, you shouldn't (..)2014 Annabelle