Paul's spiritual teaching: God will surely judge people who are immoral and those who commit adultery. Hebrews 13:4
The Letter to the Hebrews is essentially an ancient homily written down and placed among Paul's letters. It is not addressed to any particular church, nor is any specific recipient mentioned; however, its subject matter makes it an important text in the New Testament. The letter was written with certainty during the first century after Christ, and at a time when there were heresies that questioned the divinity of Christ; this text, which declares the supremacy of Christ as high priest of a new covenant with God, is of fundamental importance.
After explaining what this new covenant with God consists of, and affirming that with this new covenant a new priesthood is also necessary, the apostle Paul left in writing a series of recommendations to keep in mind with one's neighbor. Paul wrote that these spiritual recommendations are summarized in that progressive, benevolent, and edifying love of Christ with these words: "Keep on loving one another as brothers and sisters" Hebrews 13:1. And then Paul went on to explain that this love should serve to avoid the most serious sins, which are usually the most common, those that cause homicides and serious fights, and that is why Paul referred to the sin of lust and the sin of greed. And with the purpose of teaching about the capital sin of lust, the apostle with wisdom wrote: "Give honor to marriage, and remain faithful to one another in marriage. God will surely judge people who are immoral and those who commit adultery" Hebrews 13:4. Perhaps Paul wrote this as a reminder of the sin that King David committed when he fell in love with Bathsheba, a woman married to an officer in his army named Uriah the Hittite. A situation that persuaded David that it was convenient to bring Urias to his death. Ultimately, those who give in to these kinds of sins, in general, are not people guided by wisdom from above, but rather worldly people, and for this reason, they expose themselves to serious dangers and unforeseen destructive events. The apostle ultimately made it clear that it is not sensible to give in to these kinds of sins.

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