Shavuot is the biblical feast the Apostles celebrated when the Holy Spirit was poured out. It marked the giving of the Mosaic Law on Mount Sinai. And it foreshadows that day when God inscribes His Law on our hearts - through His Holy Spirit.
The lamb the Israelites slaughtered and ate was an image foreshadowing of the true Lamb that was to come – Jesus, the true Passover.
Passover, or Pesach, is the biblical feast that remembers how God delivered Israel from slavery in Egypt. Passover is also important to Christians as it points to our salvation through Christ and our deliverance from bondage to sin.
On Yom Kippur, the High Priest chose a goat to carry the sins of the people into the wilderness. Isaiah 53 tells us that one day, God will put our sin on the true scapegoat who will bear our sin.