The Lord spoke to Moses, saying: Make thee two trumpets of beaten silver,
wherewith though mayest call together the multitude (Numbers 10:1-2).
These two Apostles are called "silver trumpets" on account of their resounding preaching, and "beaten" because of being struck in their Passion. Christ made these trumpets, that is, he chose them by grace, that with them he might call a multitude of peoples to the mountain of eternal life. And just as those former trumpets called to war, to feasting and to religious festival [cf. Numbers 10:9-10], so these called the peoples to war against sin.- Saint Anthony of Padua