What is the new covenant mentioned in the Bible?

The new covenant is a central theme in the sermon, described from Hebrews and the Old Testament prophet Jeremiah. In this covenant, God promises to put His laws in the hearts of His people and to remember their iniquities no more. This indicates a transformation where the believer's relationship with God is characterized by inner change and divine grace. Unlike the old covenant which relied on human obedience and was ultimately broken, the new covenant secures salvation for those God has chosen, emphasizing God's mercy and faithfulness in grace through Christ's atoning work.