BDBD is Proverb 15:4

The Tree of Life is alluding to the physical tree found in the Garden of Eden (Genesis 2:9) and in the Paradise of God (Revelation 2:7, 22:2,19). The words I say to others can be healing (12:18). They can be life. Since Jesus is the author of life (Acts 3:15) I can learn from him what it means to have a tongue that gives healing and life. Actually, thinking about this verse more why not tell them about Jesus the author and perfecter of our faith, who for the joy set before him endured the cross, scorning its shame, and sat down at the right hand of the throne of God.” (Hebrews 12:2)

“My mouth will speak words of wisdom; the utterance from my heart will give understanding. I will turn my ear to a proverb; with the harp I will expound my riddle: Why should I fear when evil days come, when wicked deceivers surround me– those who trust in their wealth and boast of their great riches? No man can redeem the life of another or give to God a ransom for him– the ransom for a life is costly, no payment is ever enough– that he should live on forever and not see decay… This is the fate of those who trust in themselves, and of their followers, who approve their sayings… But God will redeem my life from the grave; he will surely take me to himself.” (Psalm 49:3-15)