“In your seed all the nations of the earth shall be blessed, because you have obeyed My voice.” (Genesis 22:18). God keeps His promises. As Acts unfolds we learn precisely how this promise is fulfilled.
John 13 marks a significant shift in Jesus' ministry. He's done numerous public signs to prove that He is the Christ and that it is through Him that one may have life. He now shifts to something different.
After Pentecost it was time for the apostles to take the Gospel beyond Judea into Samaria, and eventually into the ends of the earth. Now that the disciples had seen the risen Lord and received power through the Holy Spirit, they couldn't stop from sharing the Good News.
One of the most significant events in Biblical history is recorded in Acts 2. Here Luke records what is in effect the reversal of what God did at the tower of Babel.
God guided the people of Israel out of Egypt and through the wilderness. With this Old Testament backdrop Jesus now proclaims that He is the light of the world. He is the one who guides the people and shows them the way to life.
The miracle of feeding the multitude demonstrates Jesus' superiority to Moses. Moses gave the Israelites manna in the wilderness, yet they died. Jesus, as the bread of life, offers true abiding life.