The attitude of the Egyptians was one that looked favorable towards Moses and the Israelites because they had seen the power of their God in the previous plagues. One consequence of this favorable attitude was that they gave silver and gold which would pay for the expenses needed to get the Israelites to freedom.
In Exodus 11-12:20, Moses tells what to expect in the final plague called the Plague on the Firstborn. Every firstborn son in Egypt would die but the firstborn sons of the Israelites would be spared. Moses gave instructions on what they should do; sacrificing unblemished lambs to eat and spreading the blood on the sides and tops of the doorframes of the houses where they eat the lambs (v. 7).
So the Lord caused every firstborn son to die but passed over each house that had blood on the sides and tops of the doorframes. Today, instead of blood on the doors of houses, the sign that protects us from death is our acceptance of Jesus as the blood of the lamb.
The Passover tradition has been passed on from generation to generation as a celebration of the deliverance from bondage. The death of the lamb marks a new beginning just as the death of Christ on the cross marks a new beginning for the believing sinner.
This day with You Lord, we remember what You have done and are grateful. For each sunrise and sunset of each day; for each situation You pull us through; for Your Word that fortifies us for each challenge ahead. Most of all for the victory You give us in Christ Jesus. Amen.