I think the saints look something like these trees, full of life because they are next to the river of life.
Blessed is the man who does not walk in the counsel of the wicked of stand in the way of sinners or sit in the seat of mockers.
But his delight is in the law of the LORD, and on his law he meditates day and night.
He is like a tree planted by streams of water, which yields its fruit in season and who leaf does not wither. Whatever he does prospers.