Definition of the Greek Word for Ought in New Testament

The Greek word for "ought" is often translated from the word "opheilo," which carries the sense of moral obligation or debt. Paul writes in Romans 8:28 that "we know that for those who love God all things work together for good," and in this context, the idea of "ought" is implicit, as believers are called to live in accordance with God's will. The concept of "ought" is rooted in the moral law of God, which is revealed in Scripture and written on the human heart. This sense of moral obligation is a fundamental aspect of the Christian life, as believers are called to live in obedience to God's commands and to strive for holiness.

In Reformed theology, the concept of "ought" is closely tied to the idea of God's sovereignty and the believer's responsibility to live in accordance with His will. The Westminster Confession of Faith, for example, affirms that God's moral law is binding on all people, and that believers are called to obey this law out of gratitude for their salvation. This understanding of "ought" is grounded in the biblical teaching that believers are not only justified by faith, but also sanctified by the work of the Holy Spirit, who enables them to live in obedience to God's commands.

The concept of "ought" is also closely tied to the gospel, as believers are called to live in light of their salvation and to strive for holiness out of gratitude for God's grace. As the apostle Paul writes, believers are to "owe no one anything, except to love each other, for the one who loves another has fulfilled the law" (Romans 13:8). This verse highlights the importance of living in accordance with God's moral law, and the idea that our "ought" is rooted in our love for God and for our neighbors.