The words come from Psalm 121, one of the best-known biblical passages about protection on a journey, where the psalmist promises that God watches over the traveller day and night without sleeping. In Portuguese, the verse is widely quoted in churches, prayer groups and devotional media, which helps explain why a short spoken version travels so well as a standalone clip. The version on this page is credited to Porco Fumo Productions, and it is shared as an audio blessing, passed between listeners who want a portable reminder of care and safety rather than a full sermon or song.