Notice God’s unutterable waste of saints. According to the judgment of the world, God plants His saints in the most useless places. We say—‘God intends me to be here because I am so useful.’ God puts His saints where they will glorify Him, and we are no judges at all of where that is.
Sacrifice in the Bible means that we give to God the best we have; it is the finest form of worship. Sacrifice is not giving up things, but giving to God with joy the best we have.