A great article in the current Ensign makes this fantastic symbolic connection I had never seen before:
An ancient Hebrew tradition held that the Messiah would be born at Passover. We know that April in the meridian of time indeed fell in the week of the Passover feast—that sacred Jewish commemoration of Israel’s salvation from the destroying angel that brought death to the firstborn sons of Egypt. Each Israelite family that sacrificed a lamb and smeared its blood on the wooden doorposts of their dwelling was spared (see Exodus 12:3–30). Thirty-three years after Christ’s Passover birth, His blood was smeared on the wooden posts of a cross to save His people from the destroying angels of death and sin.
Searching online for illustrations of this powerful spiritual metaphor found an abundance of images. Two of my favorites: