The Word of God works in us according to the level of our understanding
In the parable of the sower, it is said that they who brought forth the fruit were the ones who heard the word and understood it. Some brought fruit thirty-, sixty- and hundredfold, according to their understanding.
«But he that received seed into the good ground is he that heareth the word, and understandeth it; which also beareth fruit, and bringeth forth, some an hundredfold, some sixty, some thirty..» (Мatth. 13: 23).