Joseph Benson's Commentary of the Old and New Testaments - Hebrews 6:18-19
Hebrews 6:18-19. That by two immutable things in either, much more in both, of which it was impossible for God to lie To alter his purpose and disappoint our expectation; we might have a strong consolation A powerful argument to believe the promise with a confidence excluding all doubt and fear, and might receive a great comfort thereby; who have fled for refuge Who, under a consciousness of our sinfulness and guilt, depravity, weakness, and wretchedness, have betaken ourselves for... read more
Albert Barnes' Notes on the Whole Bible - Hebrews 6:18
That by two immutable things - What the “two immutable things” here referred to are, has been made a matter of question among commentators. Most expositors, as Doddridge, Whitby, Rosenmuller, Koppe, and Calvin, suppose that the reference is to the promise and the oath of God, each of which would be a firm ground of the assurance of salvation, and in each of which it would be impossible for God to lie. Prof. Stuart supposes that the reference is to “two oaths” - the oath made to Abraham, and... read more