Genesis 12:10

The meaning of the saying is clear; the wise men of God are above the earth, not being of it; therefore, there was famine in it; for those who have their minds set on earthly things, famine often happens if they are deserving, and later on when they are worthy of this, it is given to them again. In this way, Abram went to Egypt to "sojourn," not to live there, coming to the rescue of those suffering from famine, not to dwell there; for even the companions of Daniel did not become corrupt in Babylon, but they were sent there to help those who had been carried away because of their sins. For God is patient with sinners as long as it is possible for them to repent. And just as doctors are sent where there is much harm or disease not to share in the disease themselves, but in order to heal those who are sick, so the saints went to Babylon and confusion, not being inhabitants of it; for they obtained nothing worthy of it, which is the characteristic of those who dwell there.

Now there was a famine in the land, and Abram went down to Egypt to sojourn there. After receiving the promises of blessing, after entering the land of promise, after building an altar to the Lord there, after invoking His name, Abraham is tested by famine, and such a great famine that he left the land which he had received in promise as soon as he saw and visited it. But Isaac and Jacob, and his sons, also left the same land of promise, driven by similar necessity. As the Psalmist sings, they passed from nation to nation and from one kingdom to another people (Psalm 105:13). This was believed to have happened not by chance, but by divine providence, so that both they and all the heirs of the same promise would understand that they received the gifts of divine blessing in such a way that in this life they would endure labor and temporal affliction, but in the future, they would expect everlasting rest and happiness. This was also to illustrate that the land of Canaan was promised to Abraham and his seed in such a way that it signified more the inheritance of the heavenly fatherland, of which it is written: "The righteous shall inherit the land and dwell upon it forever" (Psalm 37:29). This is clearly not said about the land of this world, which is common to both the righteous and the wicked, since it is narrated that it will be possessed forever by the righteous alone. Therefore, the land of Canaan is promised to Abraham and his seed, and after the long toil of Egyptian servitude, it is restored by Joshua as a leader, to mystically suggest that the heavenly fatherland promised to us will be restored through Jesus Christ our Lord after the affliction of present exile. But even in that land of Canaan, the children of the promise never ceased laboring or fighting against enemies, so they would understand, as we have said, that they should seek another fatherland beyond this one, where they will truly enjoy heavenly blessing and eternal rest. This divine providence also aligns with the fact that Abraham, while sojourning in Egypt, was endangered because of his wife; but he was helped by divine protection so that he would not be harmed, thus making it clear that not only general worldly evils, such as famine, disease, and captivity, would just men endure along with the reprobates in this life, but they would also suffer specific tribulations from the reprobates…