immutable

That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us:

THERE was a wise man, a great artificer, and the Lord conceived love for him and received him, that he should behold the uppermost dwellings and be an eye-witness of the wise and great and inconceivable and immutable realm of God Almighty, of the very wonderful and glorious and bright and many-eyed station of the Lord's servants, and of the inaccessible throne of the Lord, and of the degrees and manifestations of the incorporeal hosts, and of the ineffable ministration of the multitude of the elements, and of the various apparition and inexpressible singing of the host of Cherubim, and of the boundless light.

And who am I to tell of the Lord's unspeakable being, and of his very wonderful face? And I cannot tell the quantity of his many instructions, and various voices, the Lord's throne very great and not made with hands, nor the quantity of those standing round him, troops of cherubim and seraphim, nor their incessant singing, nor his immutable beauty, and who shall tell of the ineffable greatness of his glory?