The answer is: A tree of life

Pro 15:4

When we think about Proverbs 15:4, we uncover layers of wisdom wrapped in the imagery of a "tree of life." This metaphor isn't just poetic; it echoes throughout Scripture, reaching all the way back to Genesis where the tree of life stands as a symbol of abundance and divine connection.

In Proverbs, the "wholesome tongue" representing speech that nurtures and heals carries the potential to bear much fruit—as trees do. Just as certain trees provide shade and sustenance, our words can offer comfort, inspire hope, and foster healing in others. Imagine the butterflies, birds, and little creatures that thrive among trees; likewise, kind words create a thriving ecosystem of kindness and support in our communities.

Beyond this lovely imagery, think about how words can either create or destroy. The contrast pointed out in the preceding verses of Proverbs shows that speech can bring delight or dismay. Thus, practicing wholesome speech is not just beneficial—it’s a way to cultivate a more vibrant life around us.

Additionally, notice that this "tree of life" isn’t just for individual enjoyment; it signifies interdependence within the community. When we speak beneficially, we contribute to a space where everyone can flourish. Echoing from one heart to another, a wholesome tongue can thus inspire a forest of life in the lives we touch—truly, words matter!