en_tn/luk/08/18.md

to the one who has, more will be given to him

It is clear from the context that Jesus is talking about understanding and believing. This can be stated clearly and changed to active form. AT: "whoever has understanding will be given more understanding" or "God will enable those who believe the truth to understand even more" (See: rc://en/ta/man/translate/figs-ellipsis and rc://en/ta/man/translate/figs-activepassive)

the one who does not have ... will be taken away from him

It is clear from the context that Jesus is talking about understanding and believing. This can be stated clearly and changed to active form. AT: "But whoever does not have understanding will lose even what understanding he thinks he has" or "But God will cause those who do not believe the truth not to understand even the little that they think they have understood" (See: rc://en/ta/man/translate/figs-ellipsis and rc://en/ta/man/translate/figs-activepassive)