When considering the Sabbaths condemned by the prophet, it is noted that the prohibitions against bearing burdens (cf. Jer. 17:27), moving from one’s place (cf. Ex. 16:29), and igniting fire in homes (cf. Ex. 35:3)—which seem practically impossible to uphold—render those who hear them subject to spiritual condemnation. It is inevitable to be engaged in movement, and anything lifted, however light, can be deemed a burden, such as clothing or bread, essential for life. Yet, the law does not suggest that fire should be lit, signifying the need to avoid being consumed by earthly desires; rather, it instructs believers to refrain from carrying the weight of sin and persist in dwelling in God, anchored in faith.
God rightly detests those who fail to honor the Sabbaths in a manner that transcends mere inactivity from wicked deeds, calling for a true abstention from sin, and He does not accept those false in their observance. This sentiment resonates with the prophet's lament, “Woe to you who long for the day of the Lord” (cf. Am. 6:1, 3). The genuine observance of the Sabbath, a divine rest intended for God’s people, is worthy of acceptance because it reflects reality.
In Him who was crucified for the world, we find these Sabbaths of rest—achieved through a complete renunciation of worldly distractions and an entrance into a profound spiritual tranquility, where stability prevails in silence and peace. This individual does not kindle a fire in his eternal home, as he does not accumulate what would ignite it—wood, hay, or stubble. He does not bear the burden of iniquity but finds a true and restful Sabbath in peace.
Rather than focusing on one grand day, various translations denote occasions where deliberate disobedience is unrecognized. It is stated in reference to Unleavened Bread, “The first day shall be holy because it is holy unto you,” and similarly, “The seventh day shall be holy unto you.” The command for the offerings during the seven-day festival further emphasizes holiness (cf. Num. 28:18, 25, 26). Hence, it appears that a single proclamation could negate numerous days with similar significance and nearly all significant feasts of the law.
Who, then, shall validate the days of observance? The reference to the “great day of the Lord” (cf. Joel 2:31)—which will not arise from this earthly sun but will illuminate the east with the Sun of righteousness—conveys a true and perennial significance. This day is indeed great in an authentic sense, while the carnal Jew looks for greatness among lesser days, which even the blessed James called small and evil (cf. Gen. 47:9). The prophet identifies distinctions among them: a vanity of the Jews, something detestable, something unbearable, and something loathsome—the latter referring to the Jewish fast.
As demonstrated, some practices are rejected, and others approved by God, applicable to fasting as well. Fasting characterized by merely abstaining from food for superficial purposes without transcending to true obedience (cf. Col. 2:21) is abhorred by the Lord. Conversely, abstinence that disciplines the carnal mind is esteemed by God, as it facilitates sanctification through bodily subjugation. It is crucial that fasting entails a harmonious alignment with virtuous conduct, including words, actions, and interactions with those from whom one can derive strength, thereby augmenting ascetic discipline.
Therefore, the diligent pursue truth, rarely deviating into bodily care, yet once they tend to their needs, they should promptly eschew excessive concerns and revert to their focused lives. Such a lifestyle strips the flesh of its sustenance, preventing it from overpowering the spirit and engaging in unrighteous tendencies such as fornication, immorality, and sinful desires. Consequently, let us govern our earthly instincts (cf. Col 3:5) and engage in a fast that is both pleasing and acceptable to the Lord. This fasting diminishes the lust of the flesh and its carnal cravings.
The diligent souls find examples in the lives of Elijah, Moses, Daniel, John, and other saints who lived in simplicity and suffered deprivation (cf. Hebrews 11:37, 38). Nonetheless, an intensified abstinence does not alone yield perfection unless the soul refrains from all that feeds sin. As humans embody both soul and body, their sustenance must also reflect that duality, nurturing each aspect for fulfilling its particular functions. Just as a wrestler rejuvenates after appropriate exertion through wholesome food, the soul is nourished by faith and moral teachings, propelling it toward greater understanding and virtue.
We must be cautious regarding our inner fasting, as the Lord rightly disdains it. The prophet also expresses the Lord’s disapproval of the righteous experiencing spiritual famine (cf. Proverbs 10:3) as it pertains to their souls, not merely their bodies. This aligns with Paul’s acknowledgments of both abundance and scarcity in service (cf. 2 Cor. 11:27), emphasizing spiritual vitality over physical sustenance.
Thus, the prophetic warning emerges, elucidating the inner tragedy inflicted by those who fast only to starve their souls while neglecting the vital Word, distinguishable from mere bodily sustenance. The Lord condemns such fasts that exhaust the mind while neglecting the spiritual nourishment offered through His teachings. The physical burden on one side of a scale triggers a rise on the opposite; similarly, the increase of carnal desires can weaken the spirit, while striving for spiritual vitality may lead to bodily diminishment.
Consequently, the Apostle reminds us that while "our outer man is wasting away," the "inner man is being renewed" (2 Cor. 4:16), highlighting a reciprocal relationship between the body and spirit. The distractions from excessive indulgence, mirrored in Moses’ and Elijah’s fasts before seeking God, demonstrate the necessity of temperance for spiritual clarity and revelation. Meanwhile, the Lord, in His resurrection, affirmed the physical nature of the glorified body by partaking in food, while exemplifying that ascetic practices are critical for overcoming temptation.
However, we must recognize that idleness combined with feast observances leads to spiritual lethargy, which is rightly opposed by the Lord. It is evident that idleness contradicts the creation mandate of stewardship given to humanity (cf. Gen. 2:15). Therefore, it is essential for us to engage in purposeful work, as idleness is a barren state that the Lord abhors.
What then is the celebration God desires from us? That we do not engage in hollow pursuits, lift our eyes towards emptiness, withhold our hands from doing good, and refrain from shedding blood (cf. Is. 33:15, Is. 59:7)—in essence, not squandering our lives on mere bodily needs. The Lord’s words call attention to the weariness that comes from relapsing into sin, promising no leniency for the unrepentant heart that repeatedly forsakes the call to repentance.
True contrition involves recognizing and rejecting sin, as articulated in the psalm where one acknowledges their transgressions (cf. Psalm 35:3). It is of no value to a sick person to dwell upon what destroys their vitality while neglecting healing. Forgiveness cannot extend to those persistently engaged in unrighteousness or immoral behavior. Soul sins are absolved only when virtue prevails to shield the heart from wrongdoing, leading to a conscious aversion to sinfulness, even in the absence of witnesses.
Those virtuous and committed to chastity cultivate a transformative disposition opposing sin. The grace of forgiveness extends to those who strive against transgressions and embody a consistent rejection of misconduct. The prophetic voice warns those who rise from repeated failures, as it is evident that thorough absolution has been offered in the past. To pursue a virtuous life necessitates divine grace, prompting the wise Architect of our existence to guide those entrenched in sin towards a renewed state of life through true repentance. Yet, those who repeatedly commit to promises without fidelity may find their humanity stripped away, reflecting utter despair.