there are two kinds of sabbaths. the weekly sabbath on Saturday and annual sabbaths on days like passover. there could have been two sabbaths in the week when Jesus was crucified. one could have been on Thursday which would put the crucifiction on Wednesday and would allow the three days and three nights. remember Jesus himself said that the ONLY sign He was the son of God would be the 3 days and 3 nights in the grave. so if you do not believe He was in the tomb 72 hours then you are denying the one and only sign He said would prove who he was.
You're loading that one up with more than it can carry.
Jesus did not say that the
sign of Jonah was the ONLY sign that he is the Son of God.
He said his resurrection was the only sign he would give to a wicked and adulterous generation (Mt 12:39).
They didn't believe the signs they already had of his miracles, and demanded
another sign.
So he said the sign he would give them would be greater than all his other miraculous signs--one they could not refuse to believe. . .he would rise from the dead.
However, the NT reports their unbelief of even that sign (Mt 28:11-15, 2-4).
But the NT also reports
three other signs.
For your convenience I will present the Scriptures involved, which will make this a little lengthy, for the sake of thoroughness.
(1) Jesus gave the
sign of "
the prophet who was to come" found in
Deut 18:17-19.
(See Jn 6:14, 7:40; Ac 3:22-23, 7:37)
Jn 12:49-50 --
"For I do not speak of my own accord, but the Father who sent me commanded me what to say and how to say it. . .
So whatever I say is just what the Father has told me to say."
Deut 18:17-19 -- The LORD said to me: "What they say is good. I will raise up for them a prophet like you from among their brothers;
I will put my words in his mouth, and he will tell them everything I command him.
If anyone does not listen to my words that the prophet speaks in my name, I myself will call him to account."
(2) Jesus gave
the sign of fulfilling Isaiah's Messianic prophecies in
Isaiah 29:18-21,
35:5-6,
61:1.
Lk 4:17-22 -- The scroll of the prophet Isaiah was handed to him. Unrolling it, he found the place where it is written:
"The Spirit of the Lord is on me,
because he has anointed me
to preach good news to the poor.
He has sent me to proclaim freedom for the prisoners
and recovery of sight for the blind,
to release the oppressed,
to proclaim the year of the Lord's favor." (Isaiah 61:1-2a)
Then he rolled up the scroll, gave it back to the attendant and sat down The eyes of everyone in the synagogue were fastened on him, and he began by saying to them, "Today this scripture is fulfilled in your hearing."
All spoke well of him and were amazed at the gracious words that came from his lips.
Lk 7:18-23 -- John's disciples told him all about these things. Calling two of them, he sent them to the Lord to ask, "Are you
the one who was to come (Deut 18:17-19), or should we expect someone else?"
When the men came to Jesus, they said, "John the Baptist sent us to you to ask, 'Are you
the one who was to come, or should we expect someone else?' "
At that very time Jesus cured many who had diseases, sicknesses and evil spirits, and gave sight to many who were blind. So he replied to the messengers,
"Go back and report to John what you have seen and heard: The blind receive their sight, the lame walk, those who have leprosy are cured, the deaf hear,
the dead are raised, and the good news is preached to the poor. Blessed is the man who does not fall away on account of me." See Isaiah 29:8-21, 35:5-6, 61:1.
Jesus answered John's question by pointing to his fulfillment of the Messianic prophecies of Isaiah.
(3) The apostles Peter and Paul gave
the sign of fulfilling David's Messianic prophecy of the resurrection in
Psalm 16:8-11.
(See Peter's and Paul's addresses in Ac 2:27 and 13:32-41, respectively.)
". . .my body will rest secure, because
you will not abandon me to the grave,
nor will your Faithful One see decay. . .you will fill me with joy in your presence, with eternal pleasures
at your right hand." (
Psalm 16:10-11)