en_tn_lite_do_not_use/jhn/09/41.md

If you were blind, you would have no sin

Here "blindness" is a metaphor for not knowing God's truth. Alternate translation: "If you wanted to know God's truth, you would be able to receive your sight. (See: rc://en/ta/man/translate/figs-metaphor)

but now you say, 'We see,' so your sin remains

Here "seeing" is a metaphor for knowing God's truth. Alternate translation: "Since you falsely think that you already know God's truth, you will remain blind" (See: rc://en/ta/man/translate/figs-metaphor)