John Calvin Commentary Exodus 6:4

"And I have also established my covenant with them, to give them the land of Canaan, the land of their sojournings, wherein they sojourned." — Exodus 6:4 (ASV)

And I have also established my covenant. He confirms the hope of the deliverance, which He had previously promised and which the Patriarchs had expected, by alluding to the covenant, as I have just said above. The particle גם, gam, which is repeated twice, is in the first instance causal, and in the second, illative, meaning: “Since I covenanted with your fathers, therefore I have now determined to bring you into the land of Canaan.” Alternatively, one might prefer to understand it this way: “I, the same who established the covenant with your fathers, have now also heard your groaning.”

Moreover, because the covenant is founded on free grace, God commands the redemption to be expected as much from His good pleasure as from His steadfastness.

But He again commends the faith of Abraham, Isaac, and Jacob, because they patiently consented to be strangers and pilgrims in the land of Canaan, which by God’s covenant was their own lawful inheritance.

For it was a proof of their exemplary virtue to be wanderers all their lives, and not to have a single corner to put their foot upon, unless what was granted them by permission for the erection of their tents, being at the mercy of their neighbors; as natives always tend to despise strangers.

And by this comparison, the slowness of heart and ingratitude of their descendants is all the more condemned if they refuse to take possession of this land, which was so earnestly desired by their holy fathers, and at the sight of which alone they counted themselves blessed, even though they were only sojourners there.