To understand the OT prophecies about the resurrection of the Christ, you must first have a biblical theology of restoration of life or of death to life
The OT references to restored life point to the apex or fulfillment of it in the Holy One, Jesus
In Jesus is all the blessings and promises to Israel fulfilled and kept
Jesus death was the payment for our sin and His resurrection is the receipt
Jonah was in the belly of the large fish for three days. Jesus was in the earth for three days.
Jesus was swallowed up by something much larger
Jesus was restored from a greater destruction
In Jewish reckoning a day was counted as any part of a day
Three days and three nights should not be interpreted like we are in the days of “hotel stays.” Jesus saying days and nights is to give more detail while describing a day.
Jesus was not talking about staying at a Holiday Inn or on a Cruise
In the Jewish culture, a partial day was counted as a whole day.
Sabbath day is Saturday, but it ends at around 6pm on Saturday
The Jews knew Jesus meant three days, because they also assigned guards to watch the tomb for those three days