How do we know that God cannot lie or repent?

Scripture clearly asserts that God is incapable of lying or repenting due to His immutable nature. In 1 Samuel 15:29, it states, 'Also, the Strength of Israel will not lie nor repent, for He is not a man that He should repent.' This passage highlights God's divine attribute of being unchanging and perfect in all His ways. He does not alter His decisions based on human behavior or circumstances. Therefore, any language of God expressing regret or change should be understood as anthropomorphic, employing human terms to convey truths about His actions towards humanity in a way we can comprehend.