Promise 29 from Exodus 12:23

Ex. 12:23 - "'For the Lord will pass through to smite the Egyptians; and when He sees the blood on the lintel and on the two doorposts, the Lord will pass over the door and will not allow the destroyer to come into your houses to smite you.'" - It seems like such a harsh thing; God killing all the first born of the Egyptians and the first born animals. Only God knew what further damage would be done against the Kingdom if this didn't take place. Like He said in vs. 12, "I am the Lord!" He did provide a way out for His people however by saying, that He will not allow the destroyer to smite them when He sees the blood over the door posts and lintel. It's only through the blood of the sacrificial lamb that salvation can come. He promises that salvation and was very specific in His instructions about the placement of the blood. The blood becomes their shelter when it is placed above them, above the entrance of their home. Its only when we place the blood of Christ above us that we are shielded by Him and against the enemy. This is the assurance that God gives us. For He is Lord!