Hebrews 5:14 Meaning: Growing Into Spiritual Discernment

Three Greek words stand out in this verse, and each one speaks to a different part of the journey.

First, teleion is the word behind 'full grown' or 'mature.' It does not mean sinless perfection. It means something that has reached its intended end, like a tree that has grown to full height and now bears fruit. This is the goal, not to be flawless, but to be fully alive in faith.

Second, hexin is translated 'use' or 'habit' or 'constant use.' It is the only time this word appears in the New Testament. It means a settled quality that comes from repeated action. You don't wake up one day spiritually discerning; you build it, decision by decision, like a muscle that strengthens each time you use it.

Third, aistheteria means 'senses,' but not just physical senses, the inner faculties by which we perceive and judge. These senses can be trained, just like a musician trains an ear or a chef trains a palate. The promise is that with practice, your spiritual senses become sharp enough to distinguish good from evil in the teaching and choices you face.

Christians have understood 'good and evil' here in two main ways, and both have deep roots in the passage.

Many Reformed and evangelical commentators (like Calvin and Cambridge Bible) read the phrase as primarily about doctrinal discernment, the ability to tell sound teaching from false. They point to the context: the writer is frustrated that his readers cannot grasp deeper truths about Christ's priesthood. The 'good' is wholesome doctrine; the 'evil' is error.

Others, including Wesleyan and Baptist voices (Clarke, Gill), include moral discernment as well. They see the training of the senses as applying to everyday choices, not just intellectual belief. A mature Christian can sense what pleases God in a situation and what does not.

Both traditions agree that this kind of discernment does not come overnight. It is forged through patient practice, prayer, and submission to Scripture. The disagreement is not about the path but about the primary arena where discernment is tested.

A common misreading of this verse is to think it describes people who have reached moral perfection, Christians who never sin or never make a wrong judgment. In fact, the word 'mature' (teleios) means grown up, not flawless. The contrast is not between sinners and sinless, but between babies who only drink milk and adults who can handle solid teaching. The point is growth, not perfection. No one has arrived completely, but everyone can learn to taste and see what is true.

This week, pay attention to what you are feeding your soul. When you listen to a sermon, read a Christian book, or scroll past a spiritual post on social media, pause and ask yourself: does this taste like truth? Does it match what Scripture consistently teaches about God's character and the gospel? Training your senses begins with small decisions. Maybe that means turning off a podcast that sounds appealing but leaves you unsettled. Maybe it means spending fifteen extra minutes in a passage that feels heavy. The habit comes one decision at a time, and each one sharpens your ability to discern.