Down

One of the key words in Jonah 1 is "down". He went "down to Joppa"; he went "down in the ship"; he was thrown "down into the sea"; and he went "down into the fish". Jonah went down to get away from doing the will of the Lord.
Contrast that with our Lord. He came "down from heaven" and he went "down into the grave". He came down to do the will of the Lord. Jonah went down so that he would not see the lost redeemed but Jesus came down to redeem the lost.