Now this sign of the prophet Jonas he further explains here; (v. 40) As Jonas was three days and three nights in the whale's belly, and then came out again safe and well, thus Christ shall be so long in the grave, and then shall rise again. [1.] The grave was to Christ as the belly of the fish was to Jonah; thither he was thrown, as a Ransom for lives ready to be lost in a storm; there he lay, as in the belly of hell (Jonah ii. 2), and seemed to be cast out of God's sight. [2.] He continued in the grave just as long as Jonah continued in the fish's belly, three days and three nights; not three whole days and nights: it is probable, Jonah did not lie so long in the whale's belly, but part of three natural days (nychthemerai, the Greeks called them); he was buried in the afternoon of the sixth day of the week, and rose again in the morning of the first day; it is a manner of speech very usual; see 1 Kings xx. 29; Esth. iv. 16; v. 1; Luke ii. 21. So long Jonah was a prisoner for his own sins, so long Christ was a Prisoner for ours. [3.] As Jonah in the whale's belly comforted himself with an assurance that yet he should look again toward God's holy temple (Jonah ii. 4), so Christ when he lay in the grave, is expressly said to rest in hope, as one assured he should not see corruption, Acts ii. 26, 27. [4.] As Jonah on the third day was discharged from his prison, and came to the land of the living again, from the congregation of the dead (for dead things are said to be formed from under the waters, Job xxvi. 5), so Christ on the third day should return to life, and rise out of his grave to send abroad the gospel to the Gentiles.