God prescribed Passover with two High days of Holy convocation, the first and the seventh days of the Passover feast. Christians note that the Savior fulfilled the first of these High days by becoming the Passover sacrifice. Jesus also fulfilled the intermediate Wave Sheaf ritual by His resurrection but I do not see a Christian fulfillment of the seventh day High day at the end of Passover.
Jewish history tells us that on this seventh day after the first Passover the Israelites were pursued by Pharaoh and his army through the parted sea. The enemy met with total destruction. The Israelites had left their captivity behind and were headed for the Promised Land.