What does it mean to be fully persuaded that God is able?

To be fully persuaded reflects an unwavering belief that God is not only willing but also entirely capable of achieving all He has promised. As highlighted in Romans 4:21, Abraham's conviction was rooted in his understanding of God's omnipotence and faithfulness. This persuasion encompasses trusting in God's ability to save, justify, and sanctify us through faith in Jesus Christ, as seen in Hebrews 7:25 which states that He is able to save to the uttermost. This assurance is vital for believers, as it reinforces our reliance on divine grace rather than our inadequacies.