(KJV)
Take heed therefore that the light which is in thee be not darkness.
(NASB2020)
So watch out that the light in you is not darkness.
(NET2full)
Therefore see to it
▼▼tn This is a present imperative, calling for a constant watch (L&N 24.32;
ExSyn 721).
that the
light in you ▼▼sn Here
you is a singular pronoun, individualizing the application.
is not darkness.