God is not a man, that He should lie, nor a son of man, that He should repent. 

The Father of lights, with whom there is no variation or shadow of turning. § Jesus Christ is the same yesterday, today, and forever.His truth shall be your shield and buckler.God, determining to show more abundantly to the heirs of promise the immutability of His counsel, confirmed it by an oath, that by two immutable things, in which it is impossible for God to lie, we might have strong consolation, who have fled for refuge to lay hold of the hope set before us.The faithful God … keeps covenant and mercy for a thousand generations with those who love Him and keep His commandments. § All the paths of the Lord are mercy and truth, to such as keep His covenant and His testimonies. § Happy is he who has the God of Jacob for his help, whose hope is in the Lord his God … who keeps truth forever.