Be strong

 

Courage in the Face of Frailty: "Take Heart" as a Call to Strength in the New Testament

In the vibrant tapestry of the New Testament, words carry weight—not just as ancient echoes, but as living imperatives that bridge the divine and the human. Among these, the phrase "take heart" (or "have courage," "be of good cheer") emerges as a recurring rallying cry from Jesus himself. Far from a mere platitude, it functions as a profound summons to "be strong," a direct counterpunch to the pervasive "weakness" that plagues body, soul, and spirit. In Greek, this encouragement is rooted in tharseō (θαρσέω), an active verb urging bold confidence amid peril. Meanwhile, the NT's "weakness" translates astheneia (ἀσθένεια), a term evoking not only physical sickness but any enfeebling force that saps vitality—be it illness, doubt, or despair.

This interplay isn't coincidental; it's thematic. The New Testament portrays Jesus as the ultimate healer and empowerer, wielding tharsei like a verbal lifeline to pull the frail from the brink. In a world where sickness symbolized deeper brokenness (think leprosy as social exile or paralysis as spiritual stagnation), "take heart" wasn't passive reassurance. It was a battle command: Rise, trust, and reclaim strength through faith in the One who conquers all frailty. This article explores this dynamic through key texts, uncovering how the NT reframes weakness not as defeat, but as the fertile ground for divine power.

The Linguistic Backbone: From Astheneia to Tharseō

To grasp the NT's message, start with the words themselves. Astheneia appears over 20 times, often in healing narratives (e.g., Mark 1:34: "He healed many who were sick [asthenountas] with various diseases"). It's holistic—encompassing bodily ailment (fever in Matthew 8:14–15), chronic suffering (the hemorrhaging woman in Mark 5:25–26), and even emotional/spiritual limp (Paul's "thorn in the flesh" as astheneia in 2 Corinthians 12:9–10). This weakness isn't abstract; it's the human default under sin's shadow, rendering us "powerless" (adunatos, Romans 8:3).

Enter tharseō: a rare, vivid verb used just seven times in the NT, five by Jesus. Derived from tharsos (boldness), it implies a spirited cheerfulness born of certainty—think a warrior's shout before the fray. Unlike the stoic "be strong" (ischuō) of Old Testament exhortations (e.g., Joshua 1:9), tharsei is relational, ignited by encounter with Christ. It's God-breathed audacity: "Don't cower in your weakness; I've got this—now stand with me.

"This duo—frailty met with fortitude—mirrors the NT's gospel core: Salvation isn't for the strong but through them. As Paul later theologizes, "My grace is sufficient for you, for my power is made perfect in weakness" (2 Corinthians 12:9). Here, tharseō becomes the mechanism, turning astheneia into testimony.

Jesus' Healing Imperatives: Courage as the Key to Wholeness

Jesus deploys tharsei most strikingly in his ministry's miracle moments, where physical sickness intersects with soul-deep need. These aren't isolated events; they're microcosms of the kingdom's invasion, showing how courage combats weakness step by step.

1. Forgiveness and the Paralyzed Man: Strength Beyond the Body

In Matthew 9:1–8 (paralleled in Mark 2:1–12 and Luke 5:17–26), a paralyzed man—embodying astheneia in frozen limbs and crushed hope—is lowered through a roof by friends. The scribes mutter about Jesus' blasphemy in forgiving sins. Undeterred, Jesus declares: "Take courage [tharsei], son; your sins are forgiven" (v. 2). Only then does he command, "Get up, take your mat, and go home" (v. 6).

Why lead with courage? Paralysis wasn't just physical; it was a cage of shame, isolation, and unspoken guilt. Tharsei shatters that first—addressing the "sickness" of the spirit before the flesh. It's a holistic "be strong": Sins forgiven, body restored, faith validated. The crowd marvels, "We have seen extraordinary things today" (Luke 5:26). Lesson? True strength fights the root weakness—separation from God—unleashing cascade healing.

2. The Hemorrhaging Woman's Bold Touch: Faith-Fueled RecoveryTwelve years of uncontrollable bleeding had left the woman in Mark 5:25–34 (parallels in Matthew 9:20–22 and Luke 8:43–48) ritually unclean, financially ruined, and physically drained—a textbook astheneia. Desperate, she touches Jesus' cloak in the crowd. Power flows; she feels "in her body that she was healed of her disease" (v. 29).Jesus calls her out: "Daughter, your faith has made you well; go in peace" (v. 34). But sandwiched is tharsei: "Take courage [tharsei], daughter" (Matthew 9:22). This isn't scolding her stealth; it's affirmation. Her "weakness" drove her to bold action—crowding in, reaching out. Jesus amplifies it: Courage, born of trust, turns chronic defeat into instant victory. Her story whispers to every "unclean" soul: Frailty met with faith forges unbreakable strength.3. Blind Bartimaeus: From the Margins to the MiracleShouting from Jericho's roadside, blind Bartimaeus ignores the crowd's hush (Mark 10:46–52; parallels in Matthew 20:29–34 and Luke 18:35–43). His cries—"Jesus, Son of David, have mercy on me!"—embody raw astheneia: sightless, sidelined, silenced. The crowd relays Jesus' summons: "Take courage [tharsei]; get up, he is calling for you" (Mark 10:49).Bartimaeus tosses his cloak (his beggar's security) and springs forward. Jesus asks, "What do you want me to do for you?" (v. 51). "Rabbi, let me recover my sight." Restoration follows: "Go; your faith has made you well" (v. 52). Here, tharsei is communal—a bridge from exclusion to inclusion. It equips the weak to "get up" against societal chains, revealing Jesus' call as the ultimate strengthener. Bartimaeus joins the procession, a living emblem of frailty flipped to fervor.

4. Storm-Tossed Disciples: Courage Over ChaosNot all instances tie to sickness per se, but they expand the motif. In Matthew 14:22–33 (Mark 6:45–52), disciples battle a midnight gale on the sea—waves as metaphor for life's engulfing weaknesses. Jesus walks on water: "Take courage [tharsei]! It is I; do not be afraid" (v. 27).
Peter steps out in faith, then sinks in doubt—astheneia of the heart. Jesus grabs him: "O you of little faith, why did you doubt?" (v. 31). The storm stills. This vignette broadens "be strong": Courage isn't bravado but recognition of Christ's presence amid turmoil. It fights fear's paralysis, echoing Hebrews 12:1–2's "run with endurance" by fixing eyes on Jesus.
Conclusion: A Timeless Call to Bold Living
The New Testament's "take heart" isn't fluffy encouragement; it's a war cry against weakness's siege. In every utterance of tharsei, Jesus invites the sick, the scared, the sidelined to "be strong"—not by mustering inner reserves, but by anchoring in his unassailable might. Astheneia may mark our humanity, but courage reclaims our divinity-in-the-making.
Today, amid personal storms or global frailties, this imperative endures. It beckons: Toss the beggar’s cloak. Touch the hem. Step onto the waves. For in Christ, weakness bows to wonder. As the NT chorus swells— from Galilee's dust to eternity's dawn—may we too take heart, and rise.