Throughout the bible we see a repetitive comparison of a spiritual man to a healthy tree. Initial thought might deem this to be confusing. However, the simple needs of a physical tree show the contrary.
Trees need three basic requirements and throughout the Scriptures, in infamous passages, are clues to how God provides these necessities for our souls.
Water: Water is an essential resource for all life. Without water, earth would be desolate and uninhabited. Trees use water collected with their roots to create nutrients which they live on. Likewise, our spiritual trees require a constant supply of water in order to bear good fruit. In the famous text of Jesus and the Samaritan Woman, Jesus brings into the limelight one of the Bible’s most well known verses, “Whoever drinks of this (earthly) water will be thirsty again, but whoever drinks the water I give them will never thirst. Indeed, the water I give them will become in them a spring of water welling up to eternal life.” – John 4: 13, 14. As we grow, Jesus provides us with the water we need to survive. From him flows the river of living water which we collect with our roots and use to feed our growth.
Good Soil and Firm Foundation: The cedars of Lebanon grow their roots extremely deep, penetrating deep into the earth and drilling into rocks. Their roots clutch these rocks firmly which keeps them firmly rooted within the ground so that when gales or tempests come, they will not be shaken. These rocks buried deep within the earth represent God’s Word. If we are deeply rooted in the foundation of God’s Word, we will not be moved in trials and tribulations. Likewise in the parable of the seed-sower, the seeds which landed on the good soil of Jesus’ Word grew successfully. We need to grow our roots into His Word and cling to Jesus, the Rock of our Salvation.
Sunlight: Jesus also heavily speaks about Himself as the true light and the psalmist records that the Word of God is a lamp unto my feet and a light unto my path. Our leaves must collect this supernatural light, the Word of God, and use that grow taller and taller, until we reach the source of our light, the Son.