Nice arguement, but your premise is wrong to begin with. Can you provide any Scripture that states that the three days and three night in the belly of the great fish and belly of the earth means three days and three night in the tomb?
Let's look at Jonah's experience is, Jonah 2:1 “I cried out to the Lord because of my affliction,”
Now let us look at how Isaiah decribes Christ's experience, Isaiah 53:7
“He was oppressed, and he was afflicted, yet he opened not his mouth; like a lamb that is led to the slaughter, and like a sheep that before its shearers is silent, so he opened not his mouth.”
Notice both of their experiences they were being afflicted, but notice that Christ's in His affliction did not open His mouth; like a lamb to the slaughter. When did this happen? John19:7-9
“The Jews answered him, “We have a law, and according to that law he ought to die because he has made himself the Son of God.”8 When Pilate heard this statement, he was even more afraid.9 He entered his headquarters again and said to Jesus, “Where are you from?” But Jesus gave him no answer.”
So this is part of Jesus' affliction. So let's look at what the disciples say about what the three day and nights are about or when they started and it ended. Luke 24:19-22
“And he said to them, “What things?” And they said to him, “Concerning Jesus of Nazareth, a man who was a prophet mighty in deed and word before God and all the people,20 and how our chief priests and rulers delivered him up to be condemned to death, and crucified him.21 But we had hoped that he was the one to redeem Israel. Yes, and besides all this, it is now the third day since these things happened.”
Now let us look at what Christ says that the Law and the Prophets and the Psalms say about His three days and three nights, Luke 24:44-47
“These are my words that I spoke to you while I was still with you, that everything written about me in the Law of Moses and the Prophets and the Psalms must be fulfilled.”45 Then he opened their minds to understand the Scriptures,46 and said to them, “Thus it is written, that the Christ should suffer and on the third day rise from the dead,47 and that repentance for the forgiveness of sins should be proclaimed in his name to all nations, beginning from Jerusalem.”
Again no mention of three days and three nights in the Tomb, only three days and three nights of suffering. So let's look at when this started, John 18:19 “The high priest then questioned Jesus about his disciples and his teaching.” if you read all the accounts of His arrest and the stricking of Christ and what the Temple gaurds did to Him there is no time frame given, not until they hand Him over to Pilate is there a time frame given. Then John 18:28-32 give a time and verse 32 confrims that this was done to fulfill what He had said would happen to Him.
“Then they led Jesus from the house of Caiaphas to the governor's headquarters. It was early morning. They themselves did not enter the governor's headquarters, so that they would not be defiled, but could eat the Passover.29 So Pilate went outside to them and said, “What accusation do you bring against this man?”30 They answered him, “If this man were not doing evil, we would not have delivered him over to you.”31 Pilate said to them, “Take him yourselves and judge him by your own law.” The Jews said to him, “It is not lawful for us to put anyone to death.”32 This was to fulfill the word that Jesus had spoken to show by what kind of death he was going to die.”
Matthew 27:1-2 “When morning came, all the chief priests and the elders of the people took counsel against Jesus to put him to death.2 And they bound him and led him away and delivered him over to Pilate the governor.”
Mark 15:1 “And as soon as it was morning, the chief priests held a consultation with the elders and scribes and the whole council. And they bound Jesus and led him away and delivered him over to Pilate.”
So now we have a time frame, morning, early morning or 6 A.M. that the time frame starts that fulfill the words that Jesus spoke about His death, no mention of 3 days, 3 night in the Tomb. But that time frame of His affliction like Jonah of 3 days, 3 nights.
With the day of preperation being before the High Day Sabbath which was a Thrusday, so we have the starting of the fulfillment of the time frame starting a 6 A.M. on Thursday. Now let's look at when He roswe from the died and the time that He rose, Matthew 28:1-6
“Now after the Sabbath, toward the dawn of the first day of the week, Mary Magdalene and the other Mary went to see the tomb.2 And behold, there was a great earthquake, for an angel of the Lord descended from heaven and came and rolled back the stone and sat on it.3 His appearance was like lightning, and his clothing white as snow.4 And for fear of him the guards trembled and became like dead men.5 But the angel said to the women, “Do not be afraid, for I know that you seek Jesus who was crucified.6 He is not here, for he has risen, as he said. Come, see the place where he lay.”
Mark 16:1-6 “When the Sabbath was past, Mary Magdalene, Mary the mother of James, and Salome bought spices, so that they might go and anoint him.2 And very early on the first day of the week, when the sun had risen, they went to the tomb.3 And they were saying to one another, “Who will roll away the stone for us from the entrance of the tomb?”4 And looking up, they saw that the stone had been rolled back—it was very large.5 And entering the tomb, they saw a young man sitting on the right side, dressed in a white robe, and they were alarmed.6 And he said to them, “Do not be alarmed. You seek Jesus of Nazareth, who was crucified. He has risen; he is not here. See the place where they laid him.”
Luke 24:1-7 “But on the first day of the week, at early dawn, they went to the tomb, taking the spices they had prepared.2 And they found the stone rolled away from the tomb,3 but when they went in they did not find the body of the Lord Jesus.4 While they were perplexed about this, behold, two men stood by them in dazzling apparel.5 And as they were frightened and bowed their faces to the ground, the men said to them, “Why do you seek the living among the dead?6 He is not here, but has risen. Remember how he told you, while he was still in Galilee,7 that the Son of Man must be delivered into the hands of sinful men and be crucified and on the third day rise.”
John 20:1, 8-9 “Now on the first day of the week Mary Magdalene came to the tomb early, while it was still dark, and saw that the stone had been taken away from the tomb….8 Then the other disciple, who had reached the tomb first, also went in, and he saw and believed;9 for as yet they did not understand the Scripture, that he must rise from the dead.”
All of the se accounts of the empty Tomb are after the Sabbath and early on the first day of the week, so on the first day of the week or around 6 A.M. Also notice Luke 24:6b-7 Notice they did not remember that Jesus was supposed to be in the Tomb for 3 days and 3 nights but they, “Remember how he told you, while he was still in Galilee, 7 that the Son of Man must be delivered into the hands of sinful men and be crucified and on the third day rise.”
I posted Scripture as you asked for, now can you post Scripture that states that the Christ was supposed to be 3 days and, 3 nights in the Tomb?