How can Allah be trusted when He is described as the best of deceivers and can change His mind about promises?

In Christianity, God is characterized as a being of absolute truth and faithfulness. Unlike the Quranic depiction of Allah as a deceiver, the Bible emphasizes that God does not lie or change His mind. For instance, in Numbers 23:19, it states, 'God is not a man, that he should lie, nor a son of man, that he should change his mind.' This highlights the reliability of God's promises. Furthermore, Christians believe that God's nature is inherently good, and His actions are always in accordance with His loving character. Moreover, the fear expressed by Abu Bakr regarding Allah's schemes reflects a fundamental difference in understanding divine assurance. In Christianity, believers are assured of their salvation through faith in Jesus Christ, as articulated in John 3:16, which states, 'For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.' This assurance is rooted in the belief that Jesus' sacrifice guarantees salvation for those who trust in Him. Additionally, the concept of God being unchanging is reinforced in Hebrews 13:8, which states, 'Jesus Christ is the same yesterday and today and forever.' This contrasts sharply with the notion that Allah can change His mind or mislead individuals. In Christianity, believers can have confidence in their relationship with God, knowing that His promises are steadfast and true, unlike the uncertainties that Abu Bakr faced in his faith.