According to Exodus 12 & 13 the Israelites left Egypt on the morning of the 15th day of the first month. They were instructed to eat the Passover lamb and be ready to leave Egypt with packed bags and sandals on.
It was apparent the Jews could not save themselves from slavery, God had to do the work for them as we will see later. God’s plan for Israel required that they be free so He did the work that they could not. Similarly God’s will for mankind requires that we be redeemed from sin (John 3:16), so He did the work and only requires that we believe and receive the work done for us. Just as the Jews left a pagan country where they were enslaved and entered the desert, we have left the world and its many gods and have entered a difficult lifestyle where we must trust God for our needs. It may be uncomfortable at times but at least we are free from bondage! We have to trust God for everything, He is with us .
Just before the Jews left Egypt they asked from the Egyptians articles of gold, silver, and of clothing and they received it. These riches had a holy purpose down the road for the construction of the Tabernacle of God but were misused as the Israelites “played dress up” and acted or at least looked like the pagan country they came from.
In Exodus 33:3-6 God tells them to put off their ornaments and they whore them no longer. After we are saved, the worldly habits and self centered mindsets often still exist and we may find our selves still playing with the things of the world from which we were saved out of. We must be careful to not look like the world or operate on the same principles that the world does. If a person could look at your life but couldn’t tell the difference between you and an unbeliever there is something wrong. As we grow in Christ we learn to let go of those material things as we conform ourselves more and more to Christ’s image instead of the world’s image (Eph 2:3-6, 5:1). Hebrews 12:1 speaks of weights and sins that entangle us, these are things we willingly hold on to from our past. They can also be new things we pick up after we get saved. Let go of the worldly things from your past, put on the garments of praise and set your mind on heavenly things (Rom 8:6-8).