We could assume (if the reference to the day of visitation is strictly to the Last Day) that every knee will bow and every tongue confess that Jesus Christ is Lord (Philippians 2:10). We could also assume that in this life some Gentiles will come to faith and so end up acknowledging that those whom they marginalized (or even persecuted, Acts 9:1–2) had it right after all—and glorify God on account of the good example these Christians set in the face of their own evil. Yet as the passage describes those who glorify God on the day of visitation
as Gentiles,
we ought not to think of them coming to faith. In a way not described in detail, the apostle assures his readers that their good deeds in daily life will certainly have a God-glorifying effect among their oppressors.
12 Keep your conduct among the Gentiles honorable, so that when they speak against you as evildoers, they may see your good deeds and glorify God on the day of visitation.