Hai cercato la traduzione di prometiéndote da Spagnolo a Inglese

nunca vas a convertirte en tanto que lo vayas aplazando y prometiéndote que te harás religioso en un futuro cercano.
you can never be converted so long as you operate only in the way of delaying and promising yourself that you will become religious at some future time.

hay un medio, sí, pero es casi imposible: sería necesario que un hombre te quisiera con un amor mas intenso del que tiene a su padre y su madre; que se aferrase a ti con todas sus potencias y todo su amor, e hiciese que un sacerdote enlazase vuestras manos, prometiéndote fidelidad aquí y para toda la eternidad. entonces su alma entraría en tu cuerpo, y tú también tendrías parte en la bienaventuranza reservada a los humanos.
"no," said the old woman, "unless a man were to love you so much that you were more to him than his father or mother; and if all his thoughts and all his love were fixed upon you, and the priest placed his right hand in yours, and he promised to be true to you here and hereafter, then his soul would glide into your body and you would obtain a share in the future happiness of mankind.