Sapphira was the woman who died after lying to the Holy Spirit about money from a land sale.
In Acts 5, Sapphira and her husband, Ananias, sold property but secretly kept part of the proceeds. They presented the remaining money to the apostles while implying that it represented the full sale price. Peter confronted Ananias first, declaring that the deception was directed not merely at people but at God.
Ananias died immediately, and about three hours later Sapphira arrived without knowing what had happened. Peter asked whether the stated price was the full amount. She repeated the false claim, and she also collapsed and died. The episode caused great fear among the early Christian community in Jerusalem.
A common mix-up is to answer Ananias, who was the first of the couple to die. Sapphira is specifically the wife and the second person in the account. The story follows Barnabas's example of selling land and donating the proceeds, but the text emphasizes that Ananias and Sapphira were not required to give every penny; the deception was the central issue.