How do we know that God is able to fulfill His promises?

The assurance of God's ability to fulfill His promises is deeply rooted in the biblical narrative. Romans 4:21 illustrates the faith of Abraham, who believed that God was able to perform what He had promised. This principle applies to all God's covenant promises, which are rooted in His sovereign and unchanging nature. Throughout the Scriptures, we see numerous examples, such as God's promise to Abraham regarding his offspring, which affirm that God's word is reliable. His sovereign power ensures that He will accomplish every promise made to His people, giving believers peace and confidence in His faithfulness.