Five times in the book of Deuteronomy, God commanded the people of Israel to “remember” that they had been slaves in the land of Egypt. In those passages, the context of the command deals with their service to God and their relationship to their neighbor, especially, the poor or needy neighbor.
Remembering that they were slaves in Egypt and rescued by God would help them keep a good perspective in life so as to not forget their need for God or to be generous to their needy brother.
We too can benefit from such a command. We should always remember that we were once slaves too. Slaves to sin and the ways of the world.
Galatians 3:25-4:9 ESV But now that faith has come, we are no longer under a guardian, (26) for in Christ Jesus you are all sons of God, through faith. (27) For as many of you as were baptized into Christ have put on Christ. (28) There is neither Jew nor Greek, there is neither slave nor free, there is no male and female, for you are all one in Christ Jesus. (29) And if you are Christ’s, then you are Abraham’s offspring, heirs according to promise. (4:1) I mean that the heir, as long as he is a child, is no different from a slave, though he is the owner of everything, (2) but he is under guardians and managers until the date set by his father. (3) In the same way we also, when we were children, were enslaved to the elementary principles of the world. (4) But when the fullness of tofe had come, God sent forth his Son, born of woman, born under the law, (5) to redeem those who were under the law, so that we might receive adoption as sons. (6) And because you are sons, God has sent the Spirit of his Son into our hearts, crying, “Abba! Father!” (7) So you are no longer a slave, but a son, and if a son, then an heir through God. (8) Formerly, when you did not know God, you were enslaved to those that by nature are not gods. (9) But now that you have come to know God, or rather to be known by God, how can you turn back again to the weak and worthless elementary principles of the world, whose slaves you want to be once more?English Standard Version
We, who are IN Christ are now sons of Christ and freed from sin. However, it is beneficial to remember that we once were slaves. In this way, we can avoid mistakes like thinking more highly of ourselves than we should and forgetting God, or treating in others with contempt as if we are privileged ones and that God is lucky to have us on his team, while others are not worthy. (Luke 18:9ff)
Yesterday’s lesson deals with this need to remember that we were slaves in a little more detail. you can listen to it here if you wish. In the mean time, there is one other good reason to remember that we were once slaves of sin, owing a debt that could never be repaid. That is, it will help us be more forgiving. No sin or crime against us matches up to the sins we have done in marring the image of God He created us in. If God forgives us…we can and should forgive our fellow man.