James 3:12

Can the fig-tree, my brethren, bear olives, or the vine, figs? So no fountain can produce salt water and fresh.

Matthew 7:16-20

By their fruits you will know them. Are grapes gathered from thorns, or figs from thistles?

Matthew 12:33

Either make the tree good, and its fruit good; or make the tree unsound, and its fruit unsound. For by the fruit the tree is known.

Luke 6:43-44

For a good tree does not produce unsound fruit; nor does an unsound tree produce good fruit.

Romans 11:16-18

Now, if the first fruit is holy, the mass is holy also: and if the root is holy, the branches are holy also.

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
By their fruits you will know them. Are grapes gathered from thorns, or figs from thistles?
Matthew 12:33
Either make the tree good, and its fruit good; or make the tree unsound, and its fruit unsound. For by the fruit the tree is known.
Luke 6:43
For a good tree does not produce unsound fruit; nor does an unsound tree produce good fruit.
Romans 11:16
Now, if the first fruit is holy, the mass is holy also: and if the root is holy, the branches are holy also.