“Why did God kill Ananias and Sapphira for lying?”
The first eleven verses of Acts 5 tell the story of Ananias and Sapphira, two married professing Christians in the early days of the first church in Jerusalem. As we find out at the end of the previous chapter, these early Christians were in the habit of sharing “all things in common” in the sense that they sold excess possessions and properties and gave the proceeds to God by laying them at the feet of the apostles, who ensured they were distributed to believers in need.
The Part and the Whole
Ananias and Sapphira conspired to enhance their good name among the believers by pretending to do the same. They sold a piece of property, kept back part of the proceeds of sale, and brought the rest to the apostles, representing it as the whole amount. All of this may be inferred from Peter’s rebuke of Ananias: “While it remained unsold, did it not remain your own? And after it was sold, was it not at your disposal?” Challenged independently of one another, Ananias and Sapphira stuck to their lie and were stricken in some miraculous way. The text says they fell down and breathed their last.