Romans 6:14 states a central distinction between the Old Covenant and the New Covenant: “Sin shall not be master over you, since you are not under law but under grace.” In this context, “Law” can be understood in relation to the Mosaic Covenant and its commandments, while “grace” refers to the new order established through Jesus Christ.
The statement does not mean that Christians are incapable of committing sin. Rather, it means that those who live under grace are no longer required to remain slaves to sin. Grace gives the believer supernatural assistance to resist sin and to grow in holiness. The Christian still possesses free will and can reject grace, which is why continual cooperation with grace remains necessary.
The superiority of the New Covenant over the Old Covenant is clearly taught in the Letter to the Hebrews. Christ is described as the mediator of a “better covenant, which has been enacted on better promises” (Hebrews 8:6). Moses was a servant within God's plan of salvation, whereas Christ is the Son and mediator of the New Covenant. Therefore, the New Covenant does not merely repeat the Old Covenant but brings its promises to fulfillment.
The difference can be illustrated by comparing a bicycle with an airplane. Both can transport a person from one place to another, but their capabilities are radically different. Similarly, the Old Covenant genuinely directed Israel toward God and holiness, but it was preparatory and could not bring the fullness of the communion with God revealed through Christ. The New Covenant brings that fulfillment through Christ and the gift of the Holy Spirit.
The imagery of the temple veil illustrates this development. In the Old Covenant, access to the Holy of Holies was restricted. The high priest entered only once a year, and the veil symbolized the separation between God's holy presence and humanity. At Christ's death, however, the Gospel accounts state that “the curtain of the temple was torn in two, from top to bottom” (Matthew 27:51). The Letter to the Hebrews interprets Christ's sacrifice as opening access to the heavenly sanctuary. Through Christ, believers are therefore invited to approach God with confidence.
This does not imply that the saints of the Old Testament lived without grace. Abraham, Moses, David, Elijah, and the prophets were themselves dependent upon God's grace and faithfulness. Their salvation ultimately comes through Christ, even though Christ's redemptive work had not yet been accomplished historically. The difference is that the New Covenant brings the fullness of what had previously been anticipated and foreshadowed.
This distinction is important when considering the relationship between mercy and grace. Mercy and grace should not be divided into two separate systems, with mercy belonging to the Old Testament and grace belonging exclusively to the New Testament. God's mercy and grace are present throughout salvation history.
Hebrews 4:16 brings the two concepts together:
“Let us then with confidence draw near to the throne of grace, that we may receive mercy and find grace to help in time of need.”
Mercy includes God's compassionate forgiveness of sinners, while grace includes God's free gift of divine life and His supernatural assistance in living according to His will. The two are not opposites. Divine mercy forgives and restores, while divine grace also transforms and strengthens.
This distinction becomes particularly important in times of temptation. Hebrews speaks of finding “grace to help in time of need.” Such grace is not merely assistance after a person has fallen. God can give actual grace precisely at the moment of temptation, enabling a person to resist sin and choose what is good.
For example, when a person experiences a strong temptation, it is appropriate to pray for God's help before consenting to the temptation: “Lord, give the grace necessary to resist this temptation and to choose what is good.” Such a prayer reflects the understanding that God's grace precedes and accompanies human cooperation.
If a person falls into sin, however, divine mercy remains available. Repentance restores the sinner to communion with God. Thus there are two dimensions that should not be separated: grace strengthens a person to resist sin, while God's merciful grace also restores the person after sin has occurred.
This provides a more complete understanding of Romans 6:14. Being “under grace” does not mean that a Christian can never fall into serious sin. Rather, it means that sin no longer has an absolute claim over the Christian. Through Christ and the Holy Spirit, supernatural assistance is available to resist sin and to grow in holiness. Nevertheless, because human freedom remains, a person can reject that grace.
Matthew 11:11 also points toward the extraordinary privileges brought by Christ: “Among those born of women there has arisen no one greater than John the Baptist; yet the one who is least in the kingdom of heaven is greater than he.” John the Baptist stands at the threshold between the Old and New Covenants. He is the greatest of the prophets in the sense that he directly prepares the way for Christ, yet those who participate in Christ's Kingdom receive privileges associated with the fulfillment of God's promises.
This statement should not be understood simply as saying that every individual Christian is morally holier than John the Baptist. Rather, it emphasizes the extraordinary dignity of participation in the New Covenant and the Kingdom established by Christ.
The central difference between the Old Covenant and the New Covenant, therefore, is not merely a difference between two sets of rules. The New Covenant brings the fulfillment of God's promises through Christ, the gift of the Holy Spirit, access to the Father, and sanctifying grace. The Christian is therefore called not merely to obey external commandments but to undergo an interior transformation and become increasingly conformed to Christ.
The New Covenant consequently establishes a higher calling to holiness, while also providing the grace necessary to pursue it. The Christian life involves continual cooperation with that grace: resisting temptation, repenting after sin, receiving God's mercy, participating in the sacraments and growing in charity and holiness.
In this sense, Romans 6:14 expresses a profound reality: grace is not merely God's willingness to forgive sin; it is also God's gift by which human beings are transformed and enabled to live in freedom from slavery to sin. The New Covenant does not eliminate the possibility of falling, but it provides the supernatural means by which believers can rise, persevere, and progressively grow into the holiness to which Christ calls them.
Made with Bullet