16You will recognize them by their fruits. Are grapes gathered from thornbushes, or figs from thistles?
Jesus asks a rhetorical question where the expected answer is no. He wants his audience to understand that one does not pick grapes from thornbushes or figs from thistles. The type of tree determines the type of its fruit.
16 You will recognize them by their fruits. Are grapes gathered from thornbushes, or figs from thistles?