Luke 6:44

for each tree is known ¹  by its own fruit. For figs are not gathered ²  from thorns, nor are grapes picked ³  from brambles. ⁴ 

Ga 5:19-23; Tit 2:11-13; Jas 3:12; Jude 1:12

¹ sn The principle of the passage is that one produces what one is.

² tn Grk “they do not gather”; this has been simplified to the passive voice in the translation since the subject “they” is not specified further in the context.

³ tn This is a different verb (τρυγῶσιν, trugwsin) for gathering from the previous one (συλλέγουσιν, sullegousin).

⁴ tn This is a different term (βάτος, batos) for a thorn or bramble bush than the previous one (ἄκανθα, akanqa).

sn The statement nor are grapes picked from brambles illustrates the principle: That which cannot produce fruit, does not produce fruit.