1 Corinthians 15:3-4
3 For what I received I passed on to you as of first importance: that Christ died for our sins according to the Scriptures, 4 that he was buried, that he was raised on the third day according to the Scriptures,
The central theme of the gospel is given in these verses, a key text for the defense of Christianity. The third most important point is:
(3) He was raised on the third day according to the Scriptures. Christ was raised permanently, forever; his Father raised Him from the dead “on the third day” as noted in the Gospels (Friday afternoon to Sunday morning—three days in Jewish reckoning of time). This also occurred “according to the Scriptures.” Jesus quoted the prophet Jonah (Jonah 1:17) in Matthew 12:40 to show the connection to “three days” as prophesied in the Old Testament:
17 Now the LORD provided a huge fish to swallow Jonah, and Jonah was in the belly of the fish three days and three nights.
40 For as Jonah was three days and three nights in the belly of a huge fish, so the Son of Man will be three days and three nights in the heart of the earth.
Psalm 16:8-11 and Psalm 110 also foretell the resurrection of the Messiah:
I keep my eyes always on the LORD.
With him at my right hand, I will not be shaken.
Therefore my heart is glad and my tongue rejoices;
my body also will rest secure,
because you will not abandon me to the realm of the dead,
nor will you let your faithful one see decay.
You make known to me the path of life;
you will fill me with joy in your presence,
with eternal pleasures at your right hand.
The LORD says to my lord:
“Sit at my right hand
until I make your enemies
a footstool for your feet.”
The LORD will extend your mighty scepter from Zion, saying,
“Rule in the midst of your enemies!”
Your troops will be willing
on your day of battle.
Arrayed in holy splendor,
your young men will come to you
like dew from the morning’s womb.
The LORD has sworn
and will not change his mind:
“You are a priest forever,
in the order of Melchizedek.”
The Lord is at your right hand;
he will crush kings on the day of his wrath.
He will judge the nations, heaping up the dead
and crushing the rulers of the whole earth.
He will drink from a brook along the way,
and so he will lift his head high.