avoir foi en
What he had lost faith in was the church.
Ce en quoi il avait perdu foi, c'était l'Église.
— Conclave (2024)
But we must never lose our faith in God's love.
Mais nous ne devons jamais perdre foi en l’amour de Dieu.
— The Housemaid (2025)
I have always had faith in you.
J’ai toujours eu foi en toi.
Children usually have faith in their parents.
Les enfants ont généralement confiance en leurs parents.