Genesis 15:13Meaning & Commentary from the Church Fathers

It is a profound declaration that demands a courageous and noble spirit, transcending all earthly matters. Indeed, had the patriarch Abraham not possessed a steadfast, brave, and discerning heart, he might have found such statements to be overwhelming. "Know," it is proclaimed, "that your descendants will be strangers in a land not their own, and they will be enslaved and oppressed for four hundred years; but I will bring judgment upon the nation that enslaves them; afterward, they will depart with great wealth." Do not be astonished, he advises, when you reflect on your own life, your advanced years, the barrenness of Sarah, and the lifelessness of her womb. Do not consider my promise of giving this land to your offspring as trivial.

When he began to worry about his own safety, fearing that he might suffer misfortune, God alleviated his concerns. He declared, “Upon thee shall not come that which thou fearest; but know that thy descendants shall be strangers in a land not their own” (Acts 7:6). Numerous people will be inclined to do them harm, symbolized by the birds that descended upon the sacrifices.

The declaration made to Abraham, stating 'Thy offspring shall be strangers in a land not their own, and shall enslave them, and oppress them four hundred years,' serves as a prominent prophecy concerning the nation of Israel, which would soon find itself in bondage in Egypt. It is important to note that the Israelites would not endure the entirety of those four hundred years in servitude under Egyptian tyranny, but rather that their oppression would occur within that timeframe. This is akin to how it is recorded about Terah, Abraham's father, that 'And the days of Terah's life were two hundred and five years' (Gen. 11:32); it does not imply that he spent his whole life in Harran, but that the fullness of his years was realized there.

When God revealed this to Abram, He stated, “Look, your descendants will be alienated in a foreign land. Your offspring will not be taken there as prisoners; instead, they will move with livestock and young women, as they have done. They will toil there for a period of four hundred years. They would not have pleaded for deliverance if they had not endured harsh oppression.”

The Lord spoke to Abram, revealing the destiny of his descendants as though He were proclaiming the conditions of His covenant. A span of four hundred years is mentioned. This prophecy is detailed in Exodus (Exodus 12:40) and in Paul's letter to the Galatians (Galatians 3:17), which indicates a duration of 430 years for the Israelites' journey, tracing from Abram's migration from Mesopotamia to the promised land to the Israelites' exodus from Egypt. However, by discounting the initial 25 years of Abram's sojourn prior to Isaac's birth, we arrive at a more precise timeframe of 405 years for the wandering and enslavement of his offspring.

This declaration anticipates the brief time that the people would spend in Egypt. They were indeed foreigners in an unfamiliar land, subjected to slavery under Pharaoh and oppressed by both him and the Egyptians. This explanation aligns with what is recorded in Exodus, which states: After four hundred and thirty years... the armies of the Lord emerged from the land of Egypt (Ex. 12:41). However, it is mentioned here in the context of four hundred years. It is important to note that it does not specify that they will depart precisely after four hundred years, but rather: after four hundred years, allowing for an additional thirty years. The declaration: but I will execute judgment upon the nation they serve, has been realized just as it is detailed in Exodus.

‘Thy seed shall dwell in a land not his own’ - “A land not his own” refers to Canaan, followed by Egypt. In both regions, the offspring of Abram's lineage will be ‘forsaken,’ indicating they will wander or temporarily reside there. ‘They shall enslave me, embitter me, and humble me’: this suffering is what Abram's descendants will endure in Egypt, where, after Joseph's death, they will find themselves in severe bondage and oppression. ‘Years four hundred’: this is a generalized figure rather than a precise count of 405. The beginning of this timeline of persecution and hardship starts with the birth of Isaac, from whom Abram's lineage descends, marking the 25th year following Abram's journey from Chaldea to Canaan—culminating in the exodus of the Israelites from Egypt.