Therefore, one should not be derided for past actions but rather embraced for the transformation they are now undergoing. Consider Matthew, who was found among worldly concerns, tasked with collecting taxes. Yet he was removed from that earthly state, fortified in the strength of iron, and through his speech—akin to a razor-sharp sword—the Lord's teachings penetrated the hearts of the unbelievers. The one who was previously weak and despised in his terrestrial responsibilities became empowered for heavenly proclamation.
Moreover, we see that "the stone is melted by the heat, turning into brass" (Job 28:2). This transformation occurs when a heart, previously hard and cold, is touched by the fervor of divine love and consequently softens into the warmth of the Spirit, leading to eternal life. By the same divine fervor, the heart becomes tender in its love while remaining steadfast against worldly temptations, thus gaining strength in God’s love. What was once disregarded is now believed and proclaimed with conviction. The stone melting from the heat symbolizes how hardened minds are softened by the fire of heavenly love, acquiring true fortitude. Sinners, once indifferent like granite, can suddenly become strong in both their conviction and the integrity of their message. As expressed by Isaiah, "They that trust in the Lord shall renew their strength" (Isaiah 40:31). Our strength is renewed when, upon conversion, we renounce fleeting desires with as much fervor as we once pursued them.