James 3:12
My brothers, can a fig tree produce olives or a grapevine [produce] figs? Neither can a salt water [spring] produce fresh water.
Matthew 7:16-20
You can recognize them by their fruit [i.e., by what their lives produce]. Do people harvest grapes from thorn bushes, or figs from thistle weeds?
Matthew 12:33
Either be a healthy tree and produce wholesome fruit, or be a diseased tree and produce rotten fruit, for [the quality of] a tree will be recognized by [the quality of] its fruit.
Luke 6:43-44
For there is no healthy tree that produces bad fruit; nor is there a diseased tree that produces wholesome fruit.
Romans 11:16-18
And if the first part of the dough is dedicated to God, the entire batch of dough will be also. And if the roots [of a tree] are dedicated to God, the branches will be also.