James 3:12

A fig tree, my brothers, cannot bear olives, or a grape-vine figs, can it? And a salt spring cannot furnish fresh water.

Matthew 7:16-20

You must recognize them by their fruits. People do not pick grapes from thornbushes or figs from thistles, do they?

Matthew 12:33

"You must either make the tree healthy and its fruits healthy or make the tree sickly and its fruits sickly, for a tree is judged by its fruit.

Luke 6:43-44

"For there never is a healthy tree that bears poor fruit, nor a sickly tree that bears good fruit.

Romans 11:16-18

If the first handful of dough is consecrated, so is the whole mass; if the tree's root is consecrated, so are the branches.

Treasury of Scripture Knowledge

Summary

Can the fig tree, my brethren, bear olive berries? either a vine, figs? so can no fountain both yield salt water and fresh.

Bible References

The fig tree

Matthew 7:16
You must recognize them by their fruits. People do not pick grapes from thornbushes or figs from thistles, do they?
Matthew 12:33
"You must either make the tree healthy and its fruits healthy or make the tree sickly and its fruits sickly, for a tree is judged by its fruit.
Luke 6:43
"For there never is a healthy tree that bears poor fruit, nor a sickly tree that bears good fruit.
Romans 11:16
If the first handful of dough is consecrated, so is the whole mass; if the tree's root is consecrated, so are the branches.