1 Timothy 6:3

If any one teaches differently, and consents not to sound words, the words of our Lord Jesus Christ, and the doctrine which is according to piety,

Revelation 2:7

Let him that has an ear hear what the Spirit says to the churches; To him that conquers will I give to eat of the tree of life, which is in the paradise of my God.

Treasury of Scripture Knowledge

Summary

A wholesome tongue is a tree of life: but perverseness therein is a breach in the spirit.

Bible References

A tree

1 Timothy 6:3
If any one teaches differently, and consents not to sound words, the words of our Lord Jesus Christ, and the doctrine which is according to piety,
Revelation 2:7
Let him that has an ear hear what the Spirit says to the churches; To him that conquers will I give to eat of the tree of life, which is in the paradise of my God.