ASV: Look therefore whether the light that is in thee be not darkness.
BBE: So take care that the light which is in you is not dark.
DBY: See therefore that the light which is in thee be not darkness.
KJV: Take heed therefore that the light which is in thee be not darkness.
WEY: Consider therefore whether the light that is in you is anything but mere darkness.
WBS: Take heed therefore, that the light which is in thee be not darkness.
WEB: Therefore see whether the light that is in you isn't darkness.
YLT: take heed, then, lest the light that 'is' in thee be darkness;
