John 19:29-34
29A vessel (jar) full of sour wine (vinegar) was placed there, so they put a sponge soaked in the sour wine on [a stalk, reed of] hyssop, and held it to [His] mouth.
(It's the fulfillment of the prophecy on Psalm 69:21
21They gave me also gall [poisonous and bitter] for my food, and in my thirst they gave me vinegar (a soured wine) to drink.(A))
30When Jesus had received the sour wine, He said, It is finished! And He bowed His head and gave up His spirit.
31Since it was the day of Preparation, in order to prevent the bodies from hanging on the cross on the Sabbath--for that Sabbath was a very solemn and important one--the Jews requested Pilate to have the legs broken and the bodies taken away.
32So the soldiers came and broke the legs of the first one, and of the other who had been crucified with Him.
33But when they came to Jesus and they saw that He was already dead, they did not break His legs.
34But one of the soldiers pierced His side with a spear, and immediately blood and water came (flowed) out.
John 19:36
For these things were done, that the scripture should be fulfilled, a bone of Him shall not be broken
The cross referance for this verse is Exodus 12:46
46In one house shall it be eaten [by one company]; you shall not carry any of the flesh outside the house; neither shall you break a bone of it.(A)