He completed every commandment and, in a more profound sense, filled the law with meaning, revealing that it represented only a shadow of what was to come.
While the ceremonial and preparatory laws have ceased to hold authority since Christ’s arrival, the moral law, encompassing faith and piety, as well as the genuine spirit of revelation, remains intact and unshaken for eternity. Thus, adhering to the teachings of the Gospel in the New Testament simultaneously fulfills the commandments found in the Old Testament, not in their literal sense but in the highest and most complete manner. "Amen I say unto you, Till heaven and earth pass away, a single jot or a single line shall not pass away from the law, Till all be accomplished." The smallest Hebrew letter, a jot, or even the tiniest stroke of a pen signifies that even the seemingly trivial aspects of Divine law have purpose and importance. Consequently, those who disregard even the least of these commandments and teach others to do the same will be deemed insignificant in the Kingdom of Heaven; however, those who practice and teach them will be regarded as great.
The categorization of commandments into major and minor was a contrivance of the Pharisees to excuse themselves from fulfilling the lesser ones, ignoring that these could address the very essence of the law — justice, mercy, and faith. Contrary to the misunderstandings of the Pharisees, the Lord emphasized the necessity of upholding the law in its entirety. The law of the Gospel carries equal weight, as the Lord referred to the least of the commandments as those He intended to impart; violations of these often appear trivial to those who focus only on the literal text instead of understanding the deeper law of the spirit inscribed on their hearts.
The Lord also emphasized that unless one’s righteousness exceeds that of the scribes and Pharisees, they shall not enter the Kingdom of Heaven. The scribes and Pharisees, who falsely claimed strict adherence to the law, overlooked its deeper dimensions and crafted their own version of righteousness that was proud, hypocritical, and solely superficial, stopping short of true understanding. In essence, the righteousness of the Old Testament is insufficient for the followers of the Gospel, as noted by St. Isidore Pelusiot, who remarked that those adhering to the Gospel's rigorous standards are destined for heavenly rewards, while those from the Old Testament were credited only with earthly blessings. The Old Law was designed for the people of Israel, and any perceived inadequacies are not due to God’s commandments but rather to the limitations of those who enforced the law.